英语语法分析

An urban food myth contends that if food spends just a few seconds on the floor, dirt and germs won't have much of a chance to contaminate it.

一个有关食物的都市神话声称，如果食物只在地上停留几秒钟，灰尘和细菌就不太有可能污染它。

Hostile relationships invidiously contaminate our wellbeing.

敌对关系损害我们的健康。

Previously, MTBE (methyl tertiary-butyl ether) was the oxygenate of choice, but fell out of favour in 2004 when it was found to contaminate ground water.

以前，MTBE（甲基叔丁基醚）曾作为汽油充氧剂，但是，在2004年，人们发现它污染了地下水，所以就不再使用它了。