Nub
n. 小块, 瘤, 结节, 要点
✅ 同义词
📖 牛津释义
nub
n[sing]
the ~ of sth central or essential point of a problem, matter, etc （问题、 事情等的）中心,要点
The nub of the problem is our poor export performance. 问题的关键是我们出口贸易方面太差.
🗣️ 情景例句
Well, I've thought a lot about which college,
嗯， 我为了上哪一所大学想了很多，
It's faster but more expensive to ship goods by air.
空运较快但运费较高。
the old undue grip relaxes and the process of recuperation and repair begins.
原先不适当的紧张就会松弛下来，恢复和修整的过程就会开始。