People tend to work hard at this stage of life.

　　人在這個人生階段往往發奮努力。

　　The work must be completed within a certain time limit.

　　這項工作必須在一定期限內完成。

　　I'd love to come, only I have to work.

　　我很想去，但是我要上班。

　　As often as not, he's late for work.

　　他上班往往遲到。

　　Can you give me a price for the work?

　　請問做這件工作要多少錢？