Going outside the spacecraft while in space — and also the period of time you spend out there. So you can count them ('her third spacewalk') and you can measure them ('a six-hour spacewalk').

Going outside the spacecraft while in space在太空中走出太空船外──and以及 also the period of time you spend out there你待在外面的那段時間。So you can count them你可以用數字算它們 ('her third spacewalk'（她的第三次spacewalk） and而且 you can measure them你可以量它們的長度 ('a six-hour spacewalk'（一次六小時的spacewalk）。

Nobody actually walks: the astronaut floats, holds on to rails, and is tied to the craft by a cable so as not to drift away. The 'walk' is the everyday word people reached for because 'going outside' is what walking means to us on the ground.

Nobody actually walks其實沒有人真的在走路: the astronaut floats太空人是漂浮的, holds on to rails抓著扶手, and而 is tied to the craft by a cable用一條纜繩繫在太空船上 so as not to drift away以免飄走。The 'walk'「walk」這個字 is the everyday word people reached for是大家順手拿來用的日常字眼 because因為 'going outside' is what walking means to us on the ground對我們在地面上的人來說，「走」的意思就是「出去」。

Engineers have their own term, EVA, short for extravehicular activity, and you will hear that in mission recordings; 'spacewalk' is the word for the rest of us, used in the news and in ordinary talk. It works as a verb too — astronauts spacewalk, they went spacewalking — though the noun with 'do', 'go on', or 'carry out' is far more common.

Engineers工程師 have their own term有他們自己的說法, EVAEVA, short for全稱是 extravehicular activity「艙外活動」, and而 you will hear that in mission recordings你會在任務錄音裡聽到那個說法；'spacewalk'「spacewalk」 is the word for the rest of us才是給我們一般人用的字, used in the news and in ordinary talk用在新聞和日常對話裡。It它 works as a verb too也可以當動詞用──astronauts spacewalk太空人會spacewalk, they went spacewalking他們去spacewalking──though不過 the noun with 'do', 'go on', or 'carry out'名詞形式配上'do'、'go on'，或'carry out' is far more common遠比較常見。