sub /sʌb/ CET6+

• 1. 

  N-COUNT A sub is the same as a submarine sandwich. 同submarine sandwich

• 2. 

  N-COUNT A sub is the same as a . 同substitute teacher [美国英语]

• 3. 

  N-COUNT In team games such as football, a sub is a player who is brought into a game to replace another player. 替补队员 [非正式]

  例：

  We had a few injuries and had to use youth team kids as subs.

  我们有几个受伤队员，不得不用青年队的孩子们作替补。

• 4. 

  N-COUNT A sub is the same as a . 潜艇 [非正式]