Tracklaying
铺轨
🗣️ 情景例句
I have a full house.
我有一个罗汉。
No man learns but by pain or shame.
不经痛苦羞辱，难以取得教训。
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？