Phosphinous acid
[化] 三价膦酸
🧩 词语组成解析
🗣️ 情景例句
Philip, why don't you go
Philip 你何不去
It's not up to his usual standard.
这次没有达到他平时的水平。
Oh, dear! said Miss Yang. Are you sure you've lost it?
“哎呀！”杨小姐说，“你肯定你弄丢了？”