Core group
核心词群（大类中的小类）
🧩 词语组成解析
core
[kɔ:]
n. 中心，核心，精髓;果心，果核;[地质学]地核;[计] 磁心;
vt. 去（果）核，挖去…的果心;提取岩芯（样品）;
group
[ɡrup]
n. 组，团体;群，批;（雕塑等的）群像;（英美的）空军大队;
vt.& vi. 使成群，集合;
vt. 分类，归类;
🗣️ 情景例句
Your cooking is better than mine, and I certainly prefer not having to bother to cook at all.
你的菜煮得比我好，我当然就不想班门弄斧了。
I've had no time to prepare for this meeting, so I'll have to play it by ear.
我没有时间来准备这次会议，所以只好有什么说什么。
Oh, yes.we don't carry that item anymore.
哦，是的，那一项目我们不再卖了。