Penagar

含青霉素的5%琼脂溶液

🗣️ 情景例句

It's seventy-five cents for adults and thirty cents for children under twelve.
大人75美分,12岁以下的小孩30分。
I would like to confirm the reserved seat.
我要确定已预定的位置。
Hello! Could I speak to the headmaster, please?
您好!我能和校长通话吗?
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