Diphosphane
二膦, 二磷烷
🗣️ 情景例句
Please forgive me.
请原谅我。
You'd better see a doctor about that stomachache.
你胃痛最好去看医生。
The old lady was glad to be back at the block of flats where she lived.
老妇人回到了她居住的公寓楼，心里很高兴。