a cream spread on the skin; contains a chemical (as PABA) to filter out ultraviolet light and so protect from sunburn
sunscreens的用法和样例:
例句
There are some rules regarding sunscreens too. 这里有些关于遮光剂的使用方法。
Nanoproducts are showing up in khakis,where they contribute to stain resistance,and cosmetics,where they are used as sunscreens. 纳米产品用于卡其布服装是为了防污用于化妆品是作为遮光剂。