这个比喻很贴切。

This metaphor is very appropriate.

《新英汉大辞典》

他最喜好的那个关于“寒流”，“这个冬季的艰难”和做出“不愉快的决定”的比喻，在这个冷天显得非常贴切。

His favoured metaphors, appropriately for the chilly day, referred to "icy currents", "this winter of our hardship" and of the need to take "unpleasant decisions".

youdao

我认为把我关于SOA的看法的演变过程比喻为“探求”是相当贴切的，而且“探求”也解释了我对治理的愿景与业界流行看法不同的原因。

I think Quest serves as a perfect metaphor for the evolution of my views on SOA and sheds some light on why my vision of Governance differs from those prevailing in the industry.

youdao

There is something that one might be able to hold on to: the knob of something, the little flame of something that ; The grain of sand. -The grain of sand; but there is really not a decent metaphor for it, I think.

一个你可以依靠的支点：,一个不同寻常的想法，一个思想的小火花,就像一粒沙中看世界，-一粒沙中看世界;,不过我认为任何比喻都不够贴切。

普林斯顿公开课 - 人性课程节选