Anthratriol
[化] 蒽三酚
🗣️ 情景例句
Grandpa, when did Dad graduate from Michigan?
爷爷，爸爸是什么时候从Michigan毕业的？
How many boxes are you going to use?
你要用几盒？
They help their parents to open their stockings, too.
他们还帮助父母打开他们的袜子。