We have to set a time limit for the work.

　　我們得為這項(xiàng)工作規(guī)定個期限。

　　The work must be completed within a certain time limit.

　　這項(xiàng)工作必須在一定期限內(nèi)完成。

　　The data is limited in terms of both quality and quantity.

　　這份資料在質(zhì)量和數(shù)量上都很有限。

　　We are doing our best with the limited resources available.

　　我們利用可獲得的有限資源，盡最大的努力。

　　He was driving at well over the speed limit.

　　他當(dāng)時開車的速度遠(yuǎn)遠(yuǎn)超過了限制。