Pentahydroxybenzophenone
五羟基二苯(甲)酮
🗣️ 情景例句
Bye-bye, Alexandra. Thanks.
再见 Alexandra 谢谢。
Thank you for your help.
谢谢您的帮助。
The train was late but nobody knew the reason for the delay.
火车晚点了，但没人知道为什么。