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。

We could see the whitening of the nose where it was pressed against the glass.

我们可以看见他那在玻璃上被压得变白的鼻子。

Keenan chased down the chompers to investigate what whitening strips do to a tooth's chemical composition.

基南追踪这些牙齿，以研究美白牙贴会对牙齿的化学成分产生何种影响。

The LGA discovered that some of the whitening cosmetics they tested contained banned ingredients and were thus illegal.

LGA发现他们检测的一些美白化妆品中含有禁用成分，因此是违法的。

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

至少，她说我应该做牙齿美白。

It's for kind of whitening your under eyes a little bit.

这是为了稍微美白你的眼睛。

In 16th and 17th-century England, women painted their faces with a whitening paste called Venetian ceruse.

在 16 世纪和 17 世纪的英国，女性用一种叫做威尼斯蜡笔的美白膏涂脸。

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。

Skin whitening products often use high concentration of hydroquinone which can cause skin problems or mix with other bleaching chemicals become toxic.

皮肤美白产品经常使用高浓度的对苯二酚，这会导致皮肤问题，或与其他漂白化学品混合，从而产生毒性。