Deutration
[化] 氘化反应
🗣️ 情景例句
It's so nice of you to come.
你能来真好。
I'm afraid you will be too busy.
我怕你会太忙。
I will have to choose presents for all the family soon, but I haven't chosen any yet!
我很快就要为每一位家庭成员选购礼物，但我至今还什么也没买！