Sima
n. [地]硅镁层
✅ 同义词
🗣️ 情景例句
Nowadays in the USA, more and more young people are losing interest in politics.
正在的美国，越来越多的年轻人对政治丧失了兴趣。
You can't count on the weather being fine.
你不能指望天晴。
since ground stations and satellites cannot see everywhere.
因为地面工作站和卫星不可能看到地球上的每一个地方。