Nail varnish emerged in the 1920s. For some, painted nails represented a hint of the demimonde, but a classy thumbs up soon changed that.

20世纪20年代指甲油面世，对有些人而言，涂指甲油有几分风尘女子的意味，不过一个优雅的赞成手势改变了一切。

youdao

New environment-friendly water-based varnish: excluding ketones, volatile organic compounds were very low; durability and good abrasion resistance, surface hardness of up to 2H.

新型环保水性清漆： 不含酮，有机挥发物含量极低；耐久性和抗磨损性好，表面硬度可达2H。

youdao

I never wash up without wearing rubber gloves I don't like to chip my nail varnish.

我从来是戴橡皮手套洗碗的，我不喜欢使指甲油上有缺损。

youdao

Sian was told to sit in the anchor's seat and did so, wearing a borrowed (man's) jacket, no make-up and blue nail-varnish!

BBC: News - Breakfast - Sian Williams

To test this idea, Dr Hebets turned to her make-up bag and brought out two shades of nail varnish (NailSlicks, midnight metal and bronze ice, as her paper in the Proceedings of the National Academy of Sciences quite properly describes in its materials and methods section, in case any other researcher wishes to replicate the experiment).

ECONOMIST: Female spiders are picky lovers