Spacewalks
n. 太空漫步, 太空行走；航天舱外活动
🗣️ 情景例句
This sentence doesn't make any sense.
这个句子完全讲不通。
We have 50 provinces.
我们有50个省。
It's a very old castle. It is the oldest one in Britain.
这个城堡很古老，它是英国最老的了。