Ractinomycin
近放线菌素
🗣️ 情景例句
You need to complete some forms before the class.
上课之前你得填一些表格。
I hope you have a good time on your trip.
我希望你在你的旅行上过得愉快。
It is not long before they are so accustomed to swimming that they can pick up weights from the floor of the pool.
他们很快便适应了游泳，以致能捡起池底的物品。