every和once的用法区别奥运会四年举办一次是:The Olympic games are held every four years.但是能不能说:The Olympic games are held once four years.有没有什么特定的规则呢?

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every和once的用法区别奥运会四年举办一次是:TheOlympicgamesareheldeveryfouryears.但是能不能说:TheOlympicgamesareheldoncefour

every和once的用法区别奥运会四年举办一次是:The Olympic games are held every four years.但是能不能说:The Olympic games are held once four years.有没有什么特定的规则呢?
every和once的用法区别
奥运会四年举办一次是:The Olympic games are held every four years.
但是能不能说:The Olympic games are held once four years.
有没有什么特定的规则呢?

every和once的用法区别奥运会四年举办一次是:The Olympic games are held every four years.但是能不能说:The Olympic games are held once four years.有没有什么特定的规则呢?
every表示 每隔..,没有“一次”的含义.比如 every other line.每隔一行.every four years每隔四年.
once是可以表示一次.比如once a week 一周一次.
如果你真想用once.那就用hold once in four years ,但不能用once four years

every 是形容词
而 once 是名词或介词
两者意思不一样