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VOA慢速英语:阿波罗纪念日后美国宇航局准备重返月球

2019-08-03来源:和谐英语

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Words in This Story

enabler - n. something that makes something able to do something

capable - adj. able to do something : having the qualities or abilities that are needed to do something

install - v. to make (a machine, a service, etc.) ready to be used in a certain place

dynamics - n. the science that studies motion and the forces that cause or stop motion