Triphosphine
三膦, 三膦烷
🗣️ 情景例句
If you cannot make a counter offer, then I'm afraid we can't make a deal.
如果你不还价的话，恐怕我们无法交易。
To play the guitar
弹吉他
She's a new student. She's American.
她是个新来的同学，是个美国人。