Pennone
四甲基-2-戊酮
🗣️ 情景例句
You and Mom haven't had dinner together with us
你和妈妈没有和我们一起吃晚餐
I believe they also deserve this award.
我认为他们也有资格获得这一奖项。
I go to bed at about 10:00.
我大概十点上床睡觉。