Because COPD is an ailment that blocks airflow in the lungs, it is critical that COPD patients often focus on breathing, exercise regularly and learn relaxation techniques, especially when they are short of breath.

VOA: standard.2010.06.21

On the left hand side is my palette of puzzle pieces or building blocks and those are the things.

在左边是拼图的调色板,或者建筑模块之类的东西。

哈佛公开课 - 计算机科学课程节选

Yeah! Also just on a... there's Thayer street which is about two blocks from here.

有！也就是在一个……有一条塞耶街，距离这里只有两条街。

闲暇时间在这里 - SpeakingMax英语口语达人

A key question is whether either chamber of Congress will employ what is called the "reconciliation process" aimed at overcoming filibusters,or blocks, in the Senate on contentious measures where a 60-vote majority is usually required to pass major legislation.

VOA: standard.2009.03.24

There's a whole bunch of blocks that we'll look at in more fun detail on Friday but I'm going to pick the easiest one here and I'm going to type Hello CS50 in this string, "Hello CS50", zooming in say how nice the puzzle pieces are nicely interlocked?

今天我们看到的各种图块,到下周五我会仔细讲解其中的精妙之处,但今天我只想举一个最简单的例子,我要在这儿键入字符串，放大窗口，然后看看这漂亮的图形和文字,是如何美妙地连结在一起的？

哈佛公开课 - 计算机科学课程节选

Hector Davis owned a two-story slave auction house and jail on 14th and Franklin Streets, just two blocks down the hill from Thomas Jefferson's glorious capitol building of the State of Virginia.

赫克托·戴维斯,在第十四和富兰克林大街,拥有一栋两层的奴隶拍卖行及监狱,仅仅距离托马斯·杰斐逊,那雄伟的弗吉尼亚州议会大厦,向山下两个街区远

耶鲁公开课 - 美国内战与重建课程节选

And in Scratch did you probably see the key word "and" on one of the blocks.

在Scratch中，你们大概看到那个关键字,“and“在其中一个程序块中。

哈佛公开课 - 计算机科学课程节选