Ambulators
n. [测] 测距仪；测程轮
🗣️ 情景例句
Relax! Be patiend and enjoy yourself.
放松点！要有耐心，并让自己快乐！
Good idea!
真是个好主意！
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？