Parabromoacetophenone
对溴苯乙酮
🗣️ 情景例句
It's extremely good of you to do this for me.
你帮我做了这件事，真是太好了。
You'd better wear a light jacket.It's chilly today.
你今天最好穿一件浅色的夹克衫。 今天很冷。
I hate to interrupt a man when he's busy working,
当一个人在忙着干活时，我是不愿意去打断他的，