Acatylenetetrabromide
[建] 乙炔化四溴
🗣️ 情景例句
Good morning. Restaurant Service. May I help you?
早上好，餐厅服务部，能为你效劳吗？
I will play it by ear.
我会见机行事的。
however painful it may be at the moment.
尽管会有暂时的痛苦。