Phosphononitridic acid
[化] 氮羟膦酸
🧩 词语组成解析
🗣️ 情景例句
Can what?
能做什么？
Rear sons for help in old age; and store up grains against famine.
养儿防老。
Brevity is the soul of wit.
简洁是智慧的精华。