rise and fall, continual variation - biến động, hay thay đổi

to break (a bone) - đoạn đứt gãy

ability of an item to last a long time - độ bền

(n.) long life, long duration, length of life - tuổi thọ

(v.) to do or make something that looks real but is not real - mô phỏng

(v.) [Formal] to agree or have the same opinion - đồng ý

a resource that cannot be replaced - không tái tạo được

the production and discharge of something, especially gas or radiation - khí thải

(v.) to make or enact laws - lập pháp

(n.) the action or fact of making a specified thing smaller or less in amount, degree, or size - sự giảm bớt

(adj.) giving an advantage - thuận lợi, có lợi

(n.) A part or element of a larger whole. - thành phần, cấu tạo

including very much, complete - hoàn thiện, sự bao hàm

fall or let fall in drops; shed drops; N: action or sound of falling in drops; liquid that falls in drops - nhỏ giọt

A combination of two or more substances that are not chemically combined - hỗn hợp

to press something so hard that it breaks or is damaged

condition of no movement or activity; stop

(adv.) in a way that foretells future events

(n.) a reflected sound wave - tiếng vang, dội lại

(v.) to say what you expect to happen in the future - dự đoán

(v.) to bring into existence; to be the cause of

combined

a variety of people or things that are related in some way

changed to something new or different

careful about spending money or using resources - tiết kiệm, ít tốn kém

(v.) to improve the quality, amount, or strength of something - nâng cao, cải thiện