KEY] What is ironical is that although an adult should never completely lose the light of his childhood imagination, sooner or later we have to knuckle down to reality.
(例子)讽刺的是尽管一个成年人永远不会彻底失去童年时代的想象力,然而不久我们不得不在现实下疲于奔命。
He managed to knuckle down to his lessons long enough to pass his examination.
他在离考试还有足够长时间的时候就开始认真学习,从而通过了考试。
We all knuckle down to study just before final exam.
就在期末考前,我们开始埋头苦读。
[KEY] What is ironical is that although an adult should never completely lose the light of his childhood imagination, sooner or later we have to knuckle down to reality.
(例子)讽刺的是尽管一个成年人永远不会彻底失去童年时代的想象力,然而不久我们不得不在现实下疲于奔命。
Let's have no more rapping and knuckle down to work.
别瞎扯了,开始认真工作吧。