Anthraciny
蒽化作用
🗣️ 情景例句
I like playing basketball and badminton.
我喜欢打篮球和羽毛球。
I remember the girl whose father goes there every spring.
我记得那个女孩的父亲每年春天都去那里。
It's a very old castle. It is the oldest one in Britain.
这个城堡很古老，它是英国最老的了。