慢速英语:宇航员抵达肯尼迪航天中心准备周末前往国际空间站

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NASA – n. The National Aeronautics and Space Administration, America's space agency.

mission – n. an important task, usually involving travel somewhere

resilience – n. strong enough to recover after damage, illness, shock, etc.

challenge – n. something that is difficult to do

inspiration – n. an action or statement that causes someone to want to take action

definitely – adv. without any doubt