a paper coffee filter.

一张咖啡滤纸。

Sediment from the fuel filters had been stirred up.

从燃油过滤器里滤出来的沉淀物被搅拌起来。

You might use a yellow filter to improve the clarity of a hazy horizon.

你可以用一个黄色滤光器使模糊的地平线变得更清晰。

Most filters used in air-conditioning systems are inefficient at removing many of these particles.

大多数用在空调系统上的过滤器对于去除许多这些微粒没什么作用。

Children should have glasses which filter out UV rays.

孩子们应该佩戴可以滤除紫外线的眼镜。

Plants and trees filter carbon dioxide out of the air and produce oxygen.

花草树木能滤除空气中的二氧化碳并制造出氧气。

The best prevention for cholera is to boil or filter water, and eat only well-cooked food.

预防霍乱最好的方法是把水煮沸或过滤，并且只吃煮熟的食物。

The liver filters toxins from the body.

肝脏可以过滤身体里的毒素。

Light filtered into my kitchen through the soft, green shade of the honey locust tree.

光线透过皂荚树柔和的绿荫，照进了我的厨房。

It took months before the findings began to filter through to the politicians.

几个月后调查结果才开始逐渐传到政治家耳朵里。

News of the attack quickly filtered through the college.

袭击的消息很快就在这所大学传开了。