a worker (especially in an office) hired on a temporary basis同义词：temp, temporary worker
形容词 temporary:
not permanent; not lasting同义词：impermanentlacking continuity or regularity同义词：irregular
例句：
A large, unadorned building used for temporary occupancy.临时工房用于暂时居住的简陋的大房子A temporary, conditional pledge of property to a creditor as security for performance of an obligation or repayment of a debt.抵押给予债权人临时的、有条件的财产抵押，以此作为履行责任或偿还债务的保证A temporary stop; a pause.停顿暂时的停顿; 暂停The boss hired some temporary workers.老板雇佣了一些临时工。