I don't think he'll stay long in this job-he gives the impression that he's just trying it for size, and he'll move to something better as soon as he gets the chance. 我想这事儿他干不长,他给人的印象是他干这事只是要看看是不是很合适,一有机会,他就会另谋高就。
A person with his ambition won't stay long in a potty little firm like this. 一个有雄心大志的人在这样一个不起眼的小公司里是待不长的。
She won't last long in that job it's too tough. 她做那件工作坚持不了多久--那工作太困难。
He's getting a bit long in the tooth to be playing football. 他踢足球未免年齿过长了。