Hexenoic
己烯的
🗣️ 情景例句
That isn't necessary.
这倒不必。
You'll have to decide whether you want to pass your examinations or just have a good time.
你必须决定你是想通过考试还是好好玩一玩。
Hello! Could I speak to the headmaster, please?
您好！我能和校长通话吗？