every two與every second的區別

1. every two…的意思是“每兩個……”，后接復數名詞。如：

He gets home leave every two years. 他每兩年有一次探親假。     

You must take your medicine every two hours. 你得每兩小時服藥一次。

I have violin lessons every two weeks. 我每兩個星期上一次小提琴課。

They are all expected to send in a written report every two months. 他們每兩個月都得交一份書面報告。

2. every second…的意思是“每第二個……”，后接單數名詞。如：

The nurse comes every second day. 護士每隔一天來一次。

We meet every second Tuesday. 我們隔周星期二見面一次。

從以上例句可以看出，every two和every second意思大致相同。另外，我們還可以說every other…，意思也差不多。如：

Write on every other line. 請隔行寫。

We meet every other Tuesday. 我們隔周星期二見面一次。

I work every other day：Monday, Wednesday and Friday. 我隔天上班：每周一，三，五。