a dozen

• 一打

a dozen的用法和样例：

词汇搭配

• a dozen times 多次
• not exchange more than half a dozen words with 同…没谈过三句话...
• a dime a dozen 不希罕
• six of one and half a dozen of the other 半斤八两, 差不多...
• not give a dime a dozen 认为毫无价值...