Countries with ties to Antarctica have adopted US proposals to limit tourism in the region, in a bid to protect the fragile ecosystem of the continent.

南极洲周边各国采取了美国的建议，为了保护南极洲脆弱的生态系统而限制其周边地区的旅游。

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This will be your maximum limit bid.

这就是你的投标上限。

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Sealed bidding specifications or requirements cannot restrict, or limit unnecessarily and unduly the number of organizations submitting a bid.

密封投标规格和要求并不是没有必要的或过多的限制约束竞标者的数量。

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In a bid to limit the misalignment, hard drive makers are producing software that ensures 512 sectors line up with 4K ones.

BBC: Hard drive evolution could hit Microsoft XP users

Mr Hughes also described the adoption of the working time directive in the UK as a "mistake", telling MPs he supported the government's bid to limit its application.

BBC: Time 'not right' to join euro - Simon Hughes

In a bid to limit damage to his selection hopes, last week he posted a video apology on the internet and later issued a contrite statement following his omission.

CNN: South Africa topple England from No. 1 Test ranking