The astronaut shouldering the historic task will need the help of another astronaut to put on a 120kg, non-powered spacesuit for the extra vehicular activity.

承担此项历史性任务的航天员要先在另一名航天员的帮助下穿上120公斤的无动力舱外活动航天服。

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That will make China the third country to conduct extra-vehicular activity (EVA) in space. The other two to have achieved that are the former Soviet Union and the US.

这使得中国成为世界上第三个执行太空舱外活动的国家。其它两个国家分别是前苏联和美国。

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When they make it, China will become the third country in the world who is able to conduct extra-vehicular activity in space following the former Soviet Union and the United States.

如果此次太空行走成功，中国将成为世界上继美国和前苏联之后第三个能够进行太空出舱活动的国家。

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Vehicular activity had been spotted around a long-range missile site in late May, U.S. Defense Department officials told CNN at the time.

CNN: U.S. dismisses latest missile provocation by North Korea