Aitiogenic
产生反应的
🗣️ 情景例句
Tell him to come and see me
告诉他来见我，
I will have done it by the time you come back.
在你回来之前，我会做完它。[将来完成时，表示将完成…，会做完…]
Good morning, class.
同学们，早上好。