VOA慢速英语:日本对最新收集到的小行星材料满意

asteroid – n. any one of thousands of small planets that circle around the sun

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

charcoal – n. a hard black material that is made by burning wood with a small amount of air

impactor – n. an object (such as a meteorite) that collides with another body

bedrock – n. the solid rock that lies under the surface of the ground

compartment – n. an enclosed space or area that is usually part of something larger and is often used to hold a specific thing

meteorite – n. a piece of rock or metal that has fallen to the ground from outer space : a meteor that reaches the surface of the Earth without burning up entirely