Because of these qualities, people have been using asbestos in products for many years.

VOA: special.2009.11.17

You can keep people alive for many decades with periodic dialysis to remove waste products from the blood.

通过周期性的透析除去血液中的代谢废物,可以使病人寿命延长几十年

耶鲁公开课 - 生物医学工程探索课程节选

The company sells many products including food,clothing,electronics and objects for the home.

VOA: special.2009.07.17