Ospeneff
青霉素V钾
🗣️ 情景例句
I'm relieved to hear that.
你的话使我松了一口气。
If he doesn't, will you eat some?
如果他不，你会吃一些吗？
Before you leave the lab, make sure the electricity is turned off and the windows are shut.
你们离开实验室前，务必要关上电源，关好窗户。