A fast carry-skip adder is proposed based on variable-sized two-level block carry-lookahead logic.

提出了一种基于方块超前进位的快速进位跳跃加法器。

youdao

I'm doing a test there to say, x if the string x is less than the value of b, and x does not appear before b as strings, then I was going to do, oh, a couple of things, because they're at the same block level.

我正在做一个测试来看看，字符串,是不是小于b的值，而且x不在b之前作为字符串出现，如果是真的话我就要做，一系列的操作，因为他们是在同一个块等级上。

麻省理工公开课 - 计算机科学及编程导论课程节选

The losers in this drama also include Brazil, Argentina, Chile and Spain, which all did their level best to block the election.

WSJ: Mary O'Grady: In Elections, Honduras Defeats Ch��vez

Still, our index gives us a chance to look at real estate on a granular level, highlighting the block-to-block differences that really define local markets.

FORBES: The New High-Status ZIP Codes

Then the designers carefully add the smallest details, using street-level videotape and photographs of every city block, building and storefront.

CNN: Virtual L.A.: A traffic-less trip