adj.微妙的；敏锐的；不明显的；精细的；狡猾的

There were subtle hints in his letter. 他的信中有些微妙的暗示。

What meaning will my subtle signal make? 我的微妙信号表达了什么意思?

She has a very subtle mind. 她有个很敏锐的头脑。

Satire is a high and subtle art. 讽刺是一门崇高而又含蓄的艺术。

He is such a subtle and careful observer. 他是一位如此精细的观察者。

He is a man of subtle and refined sensibility. 他是个感情细腻的男子。

I fall for that subtle plot every time! 我每次都中了那狡猾的圈套。