你的头发看起来蛮干的，还有分叉。

Your hair seems quite dry, you know. And I see some split ends.

youdao

蛮干是要吃苦头儿的。

If you act rashly, you'll suffer for it.

《新英汉大辞典》

你必须改掉你的蛮干作风。

You should get rid of your foolhardiness.

youdao

你必须改掉你的蛮干作风。

You should get rid of your foolhardiness.

youdao