Naddc
[化] 二乙氨基二硫代甲酸钠
🗣️ 情景例句
My grandfather is very much alive and kicking.
我的祖父还健在。
How long will it take you to make it?
你要多久才能做好它？
Are you holding the ladder, Jim?
你扶住了梯子吗，吉姆？