Naphthenone
环烷酮
🗣️ 情景例句
Things on my mind.
想一些事情。
I don't allow my children to play with toy guns.
我不让自己的孩子玩玩具枪。
She kept it tied to a tree in a field during the day and went to fetch it every evening.
白天，玛丽把羔羊拴在地里的一颗树上，每天晚上把它牵回家。