Kemfert
氯化钾矿
🗣️ 情景例句
She grabbed the chance to travel abroad.
她抓住机会到国外旅行。
Let's stop here and continue in about 10 minutes.
我们暂停一下，10分钟后继续。
That is John Smith,isn't it?
你是约翰。史密斯，对吗？