Naphthophenanthrene
二苯并蒽
🗣️ 情景例句
If you don't like it, I whis you would say so.
如果你不喜欢，我希望你能说出来。
A true friend is known in the day of adversity.
疾风知劲草，患难知友情。
Mathilde! Oh yes. Sorry, I didn't recognize you. Where have you been all these years, Mathilde? I hope you weren't ill. You don't look very well.
玛蒂尔德！真的是你呀！对不起，我没有认出你来。这些年你上哪儿去了，玛蒂尔德？我想你没有病吧，你的脸色看来不太好。