Calcimeter
[医] 钙定量器
🗣️ 情景例句
Do you want a first class, business class or economy seat?
你想要头等舱、商务舱还是经济舱？
I wonder if it will rain tomorrow.
我不知道明天会不会下雨。
Yes, it is. Why don't you take off your sweater?
是啊，你何不脱了羊毛衫呢？