Interhalogen
卤间化合物
🗣️ 情景例句
We hope so! It's always good to work with you, Tom.
希望如此！汤姆，和你们合作总是很愉快。
I told him to stay till he calls.
我告诉他留下来等他打电话来。
That's difficult!
那就难啦！