Gnotobasis
无菌环境
🗣️ 情景例句
This one really brings back memories.
这一张的确唤起了许多的回忆。
It's impossible. You may notice that the cost of raw materials has gone up in recent years.
不可能，您可能注意到了近年来原材料的价格上涨了。
You'd better finish the work today, and bring it tomorrow.
你最好今天完成这作业，明天把它带来。