Methylumbelliferone
甲基7-羟基香豆素
🗣️ 情景例句
Many students are working at part time jobs.
许多学生兼职打工。
Fortune favors the brave.
好运总偏袒勇敢的人。
It is all very well for such things to occur in fiction.
这种事发生在小说中是无可非议的。