对: answer; reply宇航员: astronaut; cosmonaut进行: be in progress; be underway; ...实验: experiment; test; trial run进行实验: experiment on/with; experimentize进行实验（试验）: experiment with进行试验；进行实验: experiment with宇航员: astronaut ; cosmonaut ; spaceman; astronaut n. a person who travels through space in a space vehicle; astronauts; pilot astronaut; space flyer; space man; space traveller; spaceman(astronaut)登月宇航员: lunar astronaut (lunarnaut; lunanaut); lunarnaut机器宇航员: robonaut美国宇航员: the american astronaut农民宇航员: the astronaut farmer女宇航员: cosmonette; spacewoman日本宇航员: japanese astronauts训练宇航员: astronaut training宇航员，航天员: spaceman/astronaut宇航员高山: ko san宇航员海: cosmonaut sea宇航员列表: list of astronauts by name; list of space travelers by name宇航员之妻: astronaut's wife月球物质回收和回归宇航员检疫实验所: lunar receiving laboratory倒下的宇航员: fallen astronaut第二组宇航员: astronaut group 2第三组宇航员: astronaut group 3第四组宇航员: astronaut group 4
