1、subtle

不易察觉的;不明显的;微妙的

the slow and subtle changes that take place in all living things.

发生在所有生物身上的缓慢而细微的变化

Intolerance can take subtler forms too.

过敏反应也可能会表现得很不明显。

机智的;机巧的;狡猾的

I even began to exploit him in subtle ways.

我甚至开始巧妙地利用他。

He is a subtle character, you know.

你知道他为人狡猾。

清淡的;隐约的;柔和的

subtle shades of brown.

淡棕色

delightfully subtle scents.

怡人的淡淡香气

2、prefer

更喜欢；偏好

Does he prefer a particular sort of music?

他有特别喜欢的音乐吗？

I became a teacher because I preferred books and people to politics.

我当了老师，因为我更喜欢书本和人而不是权术。