spacewalker

1. Zhai, who became China's first-ever spacewalker, waved to the camera at this historic moment.
   刚刚成为中国太空行走第一人的翟志刚挥舞著中国国旗，他说，这是一个历史时刻。
2. Zhai Zhigang, a reserve for the Shenzhou V and VI missions, is poised to become China's first spacewalker, reports have said.
   有消息说，最有可能进行中国航天首次太空漫步的是曾经2次入选神舟计划的航天员翟志刚。
3. He was called up late for the mission following a bicycle crash injury to the assigned lead spacewalker Tim Kopra.
   他在一次自行车事故中受了伤，以后，被指定提为像提姆-考波拉一样的太空行走人士，通过太空行走去完成使命。

noun

1. an astronaut who is active outside a spacecraft in outer space