宇航员 (yǔhángyuán) means "astronaut," referring to a person trained to travel and work in space. The word is composed of 宇航 (space navigation) and 员 (a suffix indicating a person in a role). China also uses the term 航天员 (hángtiānyuán) specifically for Chinese astronauts.
三名宇航员将于下月执行太空任务。
sān míng yǔhángyuán jiāng yú xià yuè zhíxíng tàikōng rènwù.
Three astronauts will carry out a space mission next month.
成为一名宇航员是她从小的梦想。
chéngwéi yì míng yǔhángyuán shì tā cóngxiǎo de mèngxiǎng.
Becoming an astronaut has been her dream since childhood.
宇航员们在空间站上进行了多项科学实验。
yǔhángyuánmen zài kōngjiānzhàn shàng jìnxíng le duō xiàng kēxué shíyàn.
The astronauts conducted multiple scientific experiments on the space station.