Hexoketone
己酮-(2)
🗣️ 情景例句
We hired a woman to watch Richard and then Susan,
我们雇用一名女士来照顾Richard ，后来又照顾Susan
If there's anything else I can do , please tell me.
如果有任何事情我能效劳的话，请告诉我。
The Scandinavian countries are much admired all over the world for their enlightened social policies.
斯堪的纳维亚半岛各国实行开明的社会政策，受到全世界的推崇。