Gallamide
酰胺, 3, 4, 5-三羟基苯甲酰胺
🗣️ 情景例句
What do you do?
你现在做什么工作？
Do you know when he will be back?
你知道他什么时候会回来？
I am used to traveling by air and only on one occasion have I ever felt frightened.
我习惯了乘飞机旅行，只是有一次把我吓坏了。