交换 - 预中级 - 第 14 单元 - 第 3 部分

to or at a great distance

远

having a relatively great vertical extent

高

having a great distance from the surface to the bottom

深

to combine different substances, elements, or ingredients together to create a unified whole

混合

the rate or pace at which something or someone moves

速度

used to refer to a number of things or people, more than two but not many

几

movement of a liquid in a continuous and steady manner

流动

to have actual presence or reality, even if no one is thinking about it or noticing it

存在

relating or belonging to the time before history was recorded

史前的

(of air) natural, unpolluted, and clean

新鲜的

the natural light coming from the sun

阳光

not combined or mixed with anything else

纯

a change in water, air, etc. that makes it harmful or dangerous

污染

used to show likelihood or possibility without absolute certainty

可能

to a degree or extent that is unusually good

奇妙地

to let someone or something do a particular thing

允许

a glass or plastic container that has a narrow neck and is used for storing drinks or other liquids

瓶子

extremely small

微小的

the number of people who live in a particular city or country

人口

(of rules and regulations) absolute and must be obeyed under any circumstances

严格的

an instruction that says what is or is not allowed in a given situation or while playing a game

规则

to act in a particular way

表现

to bite and crush food into smaller pieces with the teeth to make it easier to swallow

咀嚼

a soft and sweet thing that a person chews for fun, fresh breath, or relaxation

口香糖

used to say that something depends on something else to happen or be true

除非

a plastic or metal container with a lid, used for putting garbage in and usually kept outside the house

垃圾桶

to search and discover something or someone that we have lost or do not know the location of

找到

a pathway typically made of concrete or asphalt at the side of a street for people to walk on

人行道

to let or make something fall to the ground

放下

to admire someone because of their achievements, qualities, etc.

尊重

not having physical or mental problems

健康的

to amuse someone so that they have an enjoyable time

娱乐

to give information about someone or something, especially in an official manner

通知

to make a person do something through reasoning or other methods

说服