Seva
abbr. stand-up extravehicular activity （宇航员在外层空间的）直立舱外活动
🗣️ 情景例句
I always go back to the city in a wonderful state of mind.
我再回到城里时， 精神总是十分饱满。
How much does it cost to go there by ship?
坐船到那里要花多少钱？
Excuse me! Are you from the USA?
对不起，你是美国人吗？