Sphingometer
梁和桁 架挠度测定器, 光测挠度计
🗣️ 情景例句
You must have the wrong number.
你一定打错电话了。
I pick up my sister from her school.
我到学校接妹妹。
I sat in the front of the bus to get a good view of the countryside.
我坐在汽车的前部，以便饱览农村风光。