With the mountain streams, sometimes wide, sometimes narrow, sometimes slow, sometimes urgent.

溪流随着山势，时而宽，时而窄，时而缓，时而急。

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These structures are called Passage Graves, because the inner chamber, sometimes several chambers in fact, could only be entered from the outside through a narrow passageway.

这些结构被称为通道式坟墓，因为这里的内室，有时实际上是几个房间，都只能从外面通过一个狭窄的通道进入。

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Sometimes companies will ask you for a telephone interview before a face to face one. This is used to narrow down the number of applicants and is especially true in the following cases.

有时候，公司会在面对面面试之前，和你进行一次电话面试，这是为了缩小申请者的范围。

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Justices Scalia and Thomas in many of the most important cases, wanted to overrule past decisions outright, while Chief Justice Roberts, Justice Alito and sometimes Justice Kennedy favored a more narrow approach that, well, depending on your point of view, either gutted previous decisions without saying so or represented a more limited approach.

NPR: The Supreme Court Shifts Direction

Just as every talent has a flip side, one downside of such life-enhancing filtering is what Eli Pariser dubbed a filter bubble in which we narrow our interests and thus sometimes miss the serendipitous connections that can pull unexpected insights and friendships into our lives.

FORBES: The Revolution That's Transforming Our Lives

And so, very frequently throughout the route, you had protesters - sometimes even just one or two lunging into the narrow street.

NPR: In Paris, Olympic Torch Inflames Protesters