VOA慢速英语:中国将发射航天器从月球上收集材料

sample – n. a small amount of something that represents what it is like

mission – n. a flight by an aircraft or spacecraft to perform a specific task

drill – v. to make holes in hard materials with a machine

module – n. a part of an object that can operate alone, especially a part of a spacecraft

remarkable – adj. very unusual or noticeable in a way that you admire

sustain – v. to cause or permit something to continue for a period of time

asteroid – n. objects made of rock and metal which orbit the sun, but are smaller than planets

challenging – adj. difficult in a way that is usually interesting or enjoyable