聪明的老师从不显露偏心。

A wise teacher never shows favouritism.

《新英汉大辞典》

杰克什么也没说，但是老师对他笑了笑，好像他做了一件很聪明的事。

Jack wasn't saying anything, but the teacher smiled at him as if he had done something very clever.

youdao

在这群人中有一位聪明的老师。

In this crowd there was a wise teacher.

youdao

So, there's a variety of studies suggesting that teachers rate attractive children as smarter and higher achieving.

有各种各样的研究表明,老师会评价好看小孩更聪明，表现更好。

耶鲁公开课 - 心理学导论课程节选

The children were chosen at random but the children who were described as showing-- as expected to show a jump in IQ, in fact, did show a jump in their IQ scores and this isn't magic.

这些孩子都是随机挑选的,那些被说成很聪明的孩子-,老师期望他们的智力会有大提高，结果他们的智力真的大大提高了,这并不是魔法。

耶鲁公开课 - 心理学导论课程节选