We have to set a time limit for the work.
我们得为这项工作规定个期限。
The work must be completed within a certain time limit.
这项工作必须在一定期限内完成。
The data is limited in terms of both quality and quantity.
这份资料在质量和数量上都很有限。
We are doing our best with the limited resources available.
我们利用可获得的有限资源，尽最大的努力。
He was driving at well over the speed limit.
他当时开车的速度远远超过了限制。