The work must be completed within a certain time limit.

这项工作必须在一定期限内完成。

《牛津词典》

Where the consignee of import goods fails to declare with the Customs within the time limit mentioned above, a fee for delayed declaration shall be charged by the Customs.

进口货物的收货人超过前款规定期限未向海关申报的，由海关征收滞报金。

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Just be sure to refute any unauthorized withdrawals or transactions within the time limit stipulated by your bank.

只要保证能在银行限定的时间内拒绝掉一切未经许可的提款和交易就行。

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Even the winning team from Shanghai Jiaotong University in China was not able to solve all the problems within the given time limit.

VOA: special.2010.03.11

Since they had not yet identified a suspect, they said there was no prospect of a prosecution within the time limit.

BBC: Climategate: Operation Cabin files released by police

The steeplechase follows, a 3, 105m course featuring three brush fences that have to be jumped three times and, once again, it must be completed within a time limit.

BBC: SPORT | TV/Radio Listings | Grandstand | Three-day eventing explained

If the accused is not brought to trial within the time limit, the case must be dismissed, though it can still be retried, depending on the seriousness of the offense and its circumstances.

CNN: Senator Fernan's 10-year crusade for speedy justice