用every four years,every 在此指“每隔”,each没有这个意思,如:The bus go every 10 miutes.出租车每十分钟发一次。
each和every指“每个”时,都指“两个或两个以上的人或物中”的“每个”
every与each的比较:
1.each用于单数名词前,后接单数动词,如:Each student has been given
their own e-mail address.每个学生都得到一个自己的电子邮件地址。
each用于复数主语后,谓语动词用复数,如:They each have their own e- mail address.
2.every后总是接单数动词,如:Every student in the class is his friend.
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