In many cases, the people performing the teeth whitening were untrained and unqualified.

在很多案例中，操作牙齿美白手术的人都未经过培训且没有手术资格。

At the very least, she said I should have teeth whitening done.

至少，她说我应该做牙齿美白。

A richer, better-looking friend who’s getting paid thousands of dollars to tweet about swimsuits and teeth whitening.

一个更富有、更漂亮的朋友，他通过发布关于泳衣和牙齿美白的推文获得了数千美元的报酬。

" At the very least" means the minimum that she should do would be to get some teeth whitening.

“至少” 是指她至少应该做的是美白牙齿。

FaceTune says its most frequently used tools are teeth whitening, skin smoothing and reshaping the face on facial features, such as slimming a jawline or nose.

FaceTune表示，其最常用的工具是牙齿美白、磨皮和修脸型及五官，比如瘦下巴和鼻子。