Phosphonous acid
[化] 亚膦酸
🧩 词语组成解析
🗣️ 情景例句
You drive a hard bargain.
你真会讲价。
I am afraid I will not be able to accompany you.
我恐怕无法跟你在一起了。
He can't write very much on a card, Mum.
在明信片上他写不了很多，妈妈。