Taches vierge
[医] 环状斑(细菌培养基上的无菌圆点)
🗣️ 情景例句
Excuse me, May I have everyone's attention, please?
对不起，请大家听我说。
I'm afraid there's nothing available before noon.
恐怕中午前是没法看了。
We can give you a little cheaper model.
我们可以提供你便宜一点的型式。