An extentis a logical unit of database storage space allocation made up of a number of contiguousdata blocks. One or more extents in turn make up a segment.

区是由许多连续的数据块组成的逻辑数据库存储分配空间的单位。

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Fishermen may have to turn to aquaculture like this tilapia farm in Vientiane to make up for the lost wild catch.

VOA: standard.2010.01.11

But it's the live preview that will set this one apart (at least until Canon, Nikon or Sony catch up) -- and either make you rush out to buy it, or make you turn up your nose in disdain.

ENGADGET: Olympus E-330: first DSLR with live LCD

It is not enough to turn up and make the numbers.

BBC: Victor Agali replies

And the timing of the ceremony is rather up to the recipient: there will be a list of dates and places offered as to when they can turn up and they make their choice based upon their own plans.

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