悲愁

tā bù zhī dào shén me jiào gū dú hé bēi chóu

她不知道什么叫孤独和悲愁。

She has no notion of sadness or worry.

bēi chóu de yàng zi

悲愁的样子

look dolefully worried

wǒ shòu bu liǎo tā lǎo shì yī liǎn bēi chóu de yàng zi

我受不了他老是一脸悲愁的样子。

I can't stand his always sad face.