Dioptra
测量高度及角度用的一种光学装置
🗣️ 情景例句
I expect that, he's will pass the examination.
我料想他会通过考试。
Would you answer the phone please?
你能接下电话吗？
What about your bag? Would you like me to carry it?
手提包呢？您要我提吗？