Pasteurflask
巴斯德氏培养瓶
🗣️ 情景例句
Don't worry, be happy.
别担心，开心点。
He works best who knows his trade.
内行的人做他的事一定会做得最好。
I want to take some books to the classroom. Could you help me, please?
我想把一些书拿到教室里，你能帮个忙吗？