fiddle是小提琴，play second fiddle 处于次要地位；当副手；唱配角

【例句】
Being a modest person, he was content to play second fiddle to others.
作为一个谦虚者，他愿意居于他人的次要位置。

To by refused to play second fiddle to young Simpson.
托比拒绝当小辛普森的副手。