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
Learning foreigh languages should be fun.
学习外语应该是乐趣无穷的。
Are you kidding?
你是开玩笑吧？
There is no social problem it is more incumbent upon us to understand than this of the role of custom.
而没有任何一个社会问题比得上风俗的作用问题更要求我们对它理解。