1942 in the astronaut sense, from space (n.) + man (n.). Earlier it meant "journalist paid by the length of his copy" (1892). Spacewoman recorded from 1960.
权威例句
1. All Chinese are proud of our first spaceman Yang Liwei.
所有的中国人都为我们的第一位太空人杨得伟感到骄傲.
2. I know a student whose father is a spaceman.
我认识一个同学.他爸爸是宇航员.
3. The spaceman will drive his moon car around to study the moon.
宇航员将开着月球车到处考察月球.
4. The spaceman flew through the galaxy at the speed of light.