Euxanthon
优吨酮, 1, 7-二羟(基)夹氧杂蒽酮
🗣️ 情景例句
I hope you will excuse me.
希望你能原谅我。
Please try to estimate the extent of the damage.
请估计一下受损害的程度吧。
They have to work hard to support their family.
他们必须努力工作来支持他们的家。