Davidigenin
二羟苯基羟基丙酮
🗣️ 情景例句
She is a particular friend of mine.
她是我特殊的朋友。
Did you cut yourself?
你自己剪的？
We were so excited, my brother and I, that we did not get to sleep until very late.
我们太激动，以至于我和我弟到很晚才睡得着。