Phosphorus pentafluoride
[化] 五氟化磷
?? 詞語組成解析
phosphorus
['f?sf?r?s]
n. [化]磷;磷光體;
五氟化物
??? 情景例句
Will I be able to receive the goods by the end of September?
我可以在9月底以前收到貨嗎？
I'm afraid all my efforts were in vain.
我擔(dān)心我的努力全白費(fèi)了。
I'm sorry.We don't have any.
對(duì)不起，我們沒有。