Tetrabromide
四溴化物
🗣️ 情景例句
That's very nice of you, but I really can't.
你太客气了，可我真的非走不可。
Please note that all our prices are quoted on CIF basis. This is our general practice, which we believe will be accepted by you.
请注意我方所报的都是CIF 价，这是我方一贯作法，希望你方能接受。
It must be a D.
这一定是“D”。