Trypanthrin
色蒽菌素, 白蒽菌素
🗣️ 情景例句
Do you have anything to snack on?
有什么可吃的吗？
He will speak about the sales projections for the coming year.
他将谈谈未来一年的销售计划。
Gradually the river grows wider, the banks recede,
然后河面渐渐地变宽，两岸后撤，