Dioptra
测量高度及角度用的一种光学装置
🗣️ 情景例句
Yes. In there. Good luck.
是的 ，在那里面。祝你好运。
They say we're going to get some rain later.
据说待会儿要下雨。
If he had not broken his tooth, he would not be in hospital now.
如果他没有把牙齿弄坏，现在就不在医院了。