the worst or least exciting, entertaining, or interesting part of something

The lowlight of the meal was when the waiter dropped my dinner in my lap. 这顿饭的低潮是服务员把饭菜掉在了我的腿上的时候。

What was the highlight and lowlight of the date? 这次约会的亮点和低潮是什么？

a narrow strip of hair on a person's head that has been made a darker colour than the surrounding hair

I'm thinking of having some lowlights in my hair. 我想在头上弄几绺颜色深一些的头发。

Hair is naturally composed of lots of different tints, so streaking, lowlights and selected colouring gives a more flattering effect. 头发自然地由许多不同色调组成，所以浅色漂染、深色挑染和特意选择的颜色都会给人一种更加漂亮的效果。