H2
[医] 氘(音刀), 重氢
🗣️ 情景例句
You pay there. I have the next group to go down. I'll see you soon then.
你在那儿付钱。我带的下一个团就是要下去的。回见！
I got home, feeling very tired.
我到家时都累死了[分词作状语]
On which ones?
哪几个品目呢，