second-string

• adj. 后补的；替补的

英英释义

Adjective:

1. being a replacement or substitute for a regular member of a team;

   "a second-string pitcher"
   

词汇搭配

• second string 第二个靠得住的人(第...
• second-string player 二线防员
• a second string to one's bow 后备方案; 第二手准...
• play second string 担任副职,起助手作用...