Ectohormone
n. [生化]外激素
🗣️ 情景例句
Tom gave Helen an apple in exchange for a piece of cake.
汤姆用一个苹果和海沦换一块蛋糕。
How did he get away with cheating?
他是如何考试做弊而未被发现？
It doesn't matter this time.
不要紧。请进来坐下吧。