second-string

基本解释

4：The Lakers have been forced to use second-string players ever since their stars were hurt early in the season.
他說：湖人隊的明星隊員賽季剛開始就受傷了，他們從此不得不起用後備隊員，因而幾乎沒有贏過一場球。
The Northern Ireland international also broke his duck at second-string level with both goals in the 2-0 win and was a little unlucky not to claim a remarkable hat-trick.
北愛爾蘭國腳也在這場2-0的勝利中用梅開二度打開了自己在預備隊的進球賬戶，沒有完成帽子戯法有點不走運。
forum.sports.sina.com.cn
Ian Holloway was in defiant mood after watching his second-string Blackpool side tumble out of the Cup at Southampton.
霍羅威其實情緒不好，在看著他的黑池二隊被南安普頓淘汰出足縂盃了以後。
blog.sina.com.cn

On the sidelines, second-string Lumias like the 710 or the 610 arrived to antipathy.
ENGADGET

If you describe a person or thing as someone's second string, you mean that they are only used if another person or thing is not available.