Anyone who has played even in a school football match knows this.

即使是仅仅参加过学校足球赛的人也有种体会。

Already, orientals and Asian Americans constitute the majority of the engineering staffs at many Valley firms.

硅谷许多公司中工程技术人员的大多数是东方人和亚裔美国人。

He showed that the average individual's sleep cycle is punctuated with peculiar bursts of eye-movements,

他指出，平常人的睡眠周期中不时伴有一阵阵奇怪的眼球队活动，

In his own lifetime Galileo was the centre of violent controversy;

伽利略在世时是激烈论战的中心。

Parents are often upset when their children praise the homes of their friends and regard it as a slur on their own cooking, or cleaning, or furniture,

当家长听到孩子赞扬自己朋友的家时，总感到不安，认为这是孩子在嫌弃自家的饭菜、卫生、或家具，

Portable boiling elements that can boil small quantities of water are useful when the right voltage of electricity is available.

如果有相配的电压，可以煮少量水的便携式热水装置是有用的。