to make the decision to begin using sth

an epidemic that is geographically widespread

relevant to business

careful about spending money or using resources

wrong about something

great confusion, disorder

completely unordered and unpredictable and confusing

to try to prevent a change from happening, or prevent yourself from being forced to do something

too attractive and tempting to be resisted

creative

talkative

a feeling of great sadness and lack of hope

being in such a terrible situation that sth needs to be done before it's too late

acting in a polite and appropriate way

people who have lived usually much longer than you have

to deal with sth physicallyor emotionally unpleasant without making any complaints

not able or willing to accept

to warn

to relate sth to sth else

give permission/approval for sth

seriously ask for sth

to be careful of

not easy to stand or walk on

to work together

to try hard

politely congratulate or praise (someone) for something.

place sth into a small place

choose sth not to be part of sth any more

used to say that sth is true or happening now but may change later

not always ,sometimes

moral beliefs

to cut and shape hard material with a sharp tool

to make known; to state openly

the action of mentioning or alluding to something.

in an important way or to an important degree

to begin to experience sb's control

to operate

to form an opinion or guess that something is true because of the information that you have

to have certain words on

a large stone coffin to bury

modern

of great importance

to divide people or things according to a characteristic

to have an effect on

to make small cuts with a claw or fingernail

a short dedication written in a book or engraved on something, such as a coin or monument

to enh

a way of thinking about things

nations

Large in space or amount

The period of the Stone Age associated with the ancient Agricultural Revolution. It follows the Paleolithic period.

a large vault, typically an underground one, for burying the dead.

An inheritance; something handed down from an ancestor or from the past

a person who stands out in na certain field

sb that has great interest in sth

a quick and significant improvement

to publicly acknowledge sb's achievement

the fact or state of belonging to a social group that has a common national or cultural tradition.

a medicine used to save lives because it destroys harmful bacteria and cures infections

to examine differences

a deep understanding of a person or thing

To continue to exist after.

to make tired

sth such as a letter or symbol

A highly contagious viral disease characterized by fever, weakness, and skin eruption with pustules that form scabs;

to finish; to bring something to an end; to decide after careful thought

let sb find out about sth by giving them experience of it or showing them what it is like

to give someone a disease

deadly

injection of a weakened or mild form of a pathogen to produce immunity

to administer a vaccine

one of four equal parts

to get rid of

very large or great; beyond ordinary means of measurement

to use sth as the basis on which to develop and make progress

A preparation of weakened or killed pathogens

type of lung disease

A highly contagious infectious disease of the spinal cord caused by a filterable virus.

actually; in fact; true in reality

modest

Information obtained through the senses.

The act of trying out a new procedure, idea, or activity.

gradually reach a particular stage

regularly

to hit repeatedly

to put someone or something in a situation where they could be in danger

hard and fixed in shape

an act of becoming fully aware of something as a fact.

character or personality

a truth, a rule, or a law

the process of cooling or freezing (e.g., food) for preservative purposes

A machine that turns the energy released by burning fuel into motion.

the train system

importance

to make easier

to make something possible

a method used to spread ideas

the spread or transmission of something (as news or money) to a wider group or area

the ability to read and write

make (something) on a large scale using machinery.

Exchange of goods and services

a man-made object

one thickness above or between other thicknesses

wandering, moving about from place to place

to lead a group of animals

fast

increase in size

sth such as a building ,bridge that was made by putting various things together

relating to or characteristic of a group of people

People who hunt animals and gather wild plants, seeds, fruits, and nuts to survive

to give the main points

to suggest that not everything about an issue is correct or true

to attract attention to

to serve as a good example

to express your disapproval of someone or something, or to talk about their faults

to emphasize

clarify by giving an example of

a negative feeling about sth

to use land for growing crops or raising animals

Bones of the body

a place for the burial of a corpse

preconceived negative opinion that is not based on reason or actual experience

To leave enough time to do something although you are busy

used to say something is certain to happen but you do not know when

to do without rush, not to hurry

again and again

even when the circumstances are very good

very quickly

to make things difficult for someone

at an unspecified (usually past) time

speak angrily to sb

to keep money or make sure you have time

mounted warrior

a soft sea creature

a thin flat part that sticks out from the body of a fish, used for swimming and keeping balance

a roughly outlined area which differs in use or in its own characteristics from its surrounding

to try to do or finish sth very quickly

a place where there is usually a road or trail so that people can travel from one side of the mountain to the other

a weapon made up of a long handle and a sharp point

a large oval stadium where spectacles are held

behaving in the way that is expected of sb who is very young and does not know how to behave in a more mature way

to move to and set up a new place to live

to stop calling sth /sb by their original name and to give them a different one

to put or bring together

to plan something in detail

a group of four singers or musicians who perform together

Flat fields cut into slopes or mountainsides

exhibiting exceptional qualities

not being able to be avoided

to portray; to represent or show in the form of a picture

a tool that makes tiny objects appear much larger for close analysis

a machine for printing text or pictures