剑桥雅思18 - 学术类 - 测试3 - 听力 - 第4部分

achieving the intended or desired result

traffic created by the movement of aircraft

to make sure that something will happen

to travel across or on an area of water by a ship or boat

a principle or idea that is abstract

(physics) the act of two or more moving items crashing into each other

a group of things of the same type that belong or are used together in some way

any action or maneuver taken as part of a plan or strategy to achieve a specific goal or progress toward an objective

to give someone or something the means or ability to do something

at the current moment or during the existing time

used to introduce a specific point or reason in a discussion or argument

to a specific degree, particularly when compared to other similar things

to be able to pay the cost of something

to send an object, such as a satellite, missile, etc., into space

an arrangement of parts or elements

to be formed from particular parts or things

regardless of a particular circumstance or obstacle

the act of designating or identifying something

conforming to the expected standards

to follow someone or something by examining the marks they leave behind in order to catch them or know what they are doing

to weigh relevant information to understand a situation or form a conclusion

someone or something that is possible to cause danger, trouble, or harm

the scattered pieces of waste, remains, or broken objects, often left after destruction or an accident

things that are considered useless, worthless, or of little value, often discarded or thrown away

a large structure used as a long-term base for people to stay in space and conduct research

a branch of science that studies space, planets, etc.

a talk given to an audience about a particular subject to educate them, particularly at a university or college

an object sent into space to travel around the earth and send or receive information

the path an object in the space follows to move around a planet, star, etc.

used to provide an alternative or clearer way of expressing the same idea

the universe beyond the atmosphere of the earth

the coming and going of cars, airplanes, people, etc. in an area at a particular time

a person who uses or controls a machine, device or piece of equipment

a person, organization, country, etc. that engages in commercial competition with others

interested or ready to do something

a small fact or piece of information

distinctive among others that are of the same general classification

in a way that continues without any pause

to pursue the direction or movement of someone or something

to present an idea, suggestion, etc. to be discussed

related to someone or something

to move toward a particular direction

to state or describe how two things or persons are similar

easy to acquire or use

to introduce or create laws or policies

to show or give something to others for inspection, consideration, or approval

a large structure of data stored in a computer that makes accessing necessary information easier

to actively promote or publicize a product, service, or idea

a state of being overcrowded or blocked, particularly in a street or road

to handle a difficult situation and deal with it successfully

to control and organize the different parts of an activity and the group of people involved so that a good result is achieved

indicating a large number of something

a vehicle designed to travel in space

in a way that involves an entire nation

to establish a fresh entity, such as a company, system, or organization

existing or spreading among many people, groups, or communities through communication, influence, or awareness

to convey or communicate something, such as information, ideas, or emotions, from one person to another

stated or specified; acknowledged or supposed