made by humans rather than occurring naturally in nature

人造的, 人工的
(microbiology) single-celled microorganisms that can be found in various environments, including soil, water, and living organisms, and can be beneficial, harmful, or neutral

细菌, 菌
(biology) a series of transformations and events that happen in an animal or plant's lifetime

循环, 周期
(biochemistry) a chemical substance that carries the genetic information, which is present in every cell and some viruses

DNA, 脱氧核糖核酸
the branch of biology that deals with how individual features and different characteristics are passed through genes

遗传学, 基因学
(biology) to change gradually and over generations into forms that are better adapted to the environment and fitter to survive

进化, 演变
(chemistry) a substance that its molecules consist of two or more elements that are held together by a chemical bond

化合物, 复合物
a substance that is composed of only one type of atom, typically characterized by specific physical and chemical properties

元素, 要素
a physical substance that occupies space and exists in every material in the universe

物质, 材料
a solid, naturally occurring substance with a specific chemical composition, typically found in the earth's crust, such as gold, copper, etc.

矿物, 矿石
the temperature at which a liquid starts boiling

沸点, 沸腾点
the energy transmitted in the form of particles or waves through the space or a matter

辐射, 放射
to help something progress or succeed

推进, 促进
to take in energy, liquid, etc.

吸收, 吸纳
(physics) to make a substance radioactive

激活, 活化
a field of engineering that deals with the design, construction, and repair of buildings, bridges, roads, etc.

土木工程, 建筑工程
a machine or device that detects any changes in the environment and sends the information to other electronic devices

传感器, 感测器
the complete circle through which an electric current flows, typically consists of the source of electric energy

电路, 电路系统
(physics) the space or area within which the effect of a particular force exists

场, 场域
a wire that carries electrical current and has the potential to cause electric shock or injury if touched

带电导线, 通电线
the process or act of moving or changing place

运动, 移动
to carefully check the quality, activity, or changes of something or someone for a period of time

监控, 观察
the effect of sunlight, wind, or rain, on rocks that makes them change color or appearance

风化, 侵蚀
B2级单词表 |
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