同义词： bomber grinder hero hero sandwich hoagie hoagy Cuban sandwich Italian sandwich poor boy submarine submarine sandwich torpedo wedge zep
"The young teacher had to substitute for the sick colleague"; "The skim milk substitutes for cream--we are on a strict diet"
同义词： substitute stand in fill in
以上来源于: WordNet
N-COUNT A sub is the same as a submarine sandwich. 同submarine sandwich
N-COUNT A sub is the same as a . 同substitute teacher [美国英语]
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]
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。
N-COUNT A sub is the same as a . 潜艇 [非正式]
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