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。

　　Her job is hard work, but the pay is good.

　　她工作雖辛苦，但薪水不低。

　　When I left they were all still hard at it.

　　我離開的時(shí)候他們都還在努力工作。

　　You think you're really hard, don't you?

　　你是不是以為自己真的很勇猛？

　　Come and get me if you think you're hard enough.

　　你要是覺得自己有種，就沖著我來吧。