He can work hard but he needs a nudge now and then.

　　他能夠努力工作，但偶爾需要督促一下。

　　I can vouch for her ability to work hard.

　　我保證她能夠努力工作。

　　People tend to work hard at this stage of life.

　　人在這個(gè)人生階段往往發(fā)奮努力。

　　You will have to work hard if you are to succeed.

　　要想有所作為，你必須苦干。

　　You're just coasting ─ it's time to work hard now.

　　你根本是在應(yīng)付——現(xiàn)在該努力干了。