🗣️ 情景例句
Well, that's what fathers are for.
嗯，父亲们的用处正在于此。
It's earier to run down the hill than go up.
下山容易上山难。
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？