Acethydrazide
乙酰肼
🗣️ 情景例句
Dad works hard, and he works late.
爸爸工作忙， 而且忙到很晚。
He has gone to America.
他去美国了。[动作结束后的结果持续至今]
I was able to tell him that he had pulled out the wrong tooth.
我总算有可能告诉他，他拔错了牙。