Unnest
abbr. United Nations
🗣️ 情景例句
A rolling stone gathers no moss.
滚石不能苔。
That's it.
对了。
and if a single curved glass would distort nature, how much more would a pair of them?
何况一片曲面镜就可歪曲自然，那么伽利略的两片曲面镜对自然的歪曲又该多大呢？