Anthratetrol
[化] 蒽四酚
🗣️ 情景例句
I know.
我知道。
Nothing is more precious than time.
世上最宝贵的莫过于光阴。
Here was a seven-year-old girl who at the age of 19 months had become deaf and blind.
一个7岁的女孩，出生19个月后就得了聋盲症。