T.f.
[医] 结核菌素滤液
🗣️ 情景例句
I have received the secretarial training for six months.
我曾接受过6个月的秘书训练。
We've got to get a refrigerator for the kitchen.
我们必须有一个电冰箱放在厨房。
How many would you like to order?
您要订多少？