13.just the job<英,非正式>正是所需要的
Not only is it just the job for travelling, but it's handy for groceries too.这东西不光出门旅行需要, 而且买菜时也派得上用场。
14.on the job
(while working)在职的；在工作中的
These skills will be taught on the job.这些技能将在工作中传授。
There was no formal training; they learned on the job.他们并没有接受正式培训, 而是边工作、边学习。
(engaged in employment)在上班；在职
The top pay scale after five years on the job would reach $5.00 an hour.干满五年之后, 薪金最高可达每小时5美元。
<英,冒犯>(having sex)在干那事；发生性关系