慢速英语:NASA Astronauts Train for Commercial Space Flights
日期:2016-05-16
Words in This Story
shuttle – n. a vehicle that travels back and forth between places
spacecraft – n. a vehicle that is used for travel in outer space
simulators – n. machines that are used to show what something looks or feels like and are usually used to study something or to train people
cockpit – n. the area in a boat, airplane or spacecraft where the pilot or driver sits
mission – n. an important operation or program
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