Phytoecdysone
植物蜕皮激素
🗣️ 情景例句
What are you so upset about?
什么使你如此难过？
I will take a train.
我将去搭火车。
It was spring,but the weather was awful.It rained all the time.
是春天，但天气太糟了。一直在下雨。