It's more obvious because there are probably fewer lines there, so that you can focus on the primary line, the basic line--the bass line.

更明显的是这里也许有几条线，所以你可以将重点放在主线上，基准线，也就是低音线。

耶鲁公开课 - 聆听音乐课程节选

It's obvious that the bottom line of my two-day trip is this object C.

显然我两天的行程结果就是这个矢量 C

耶鲁公开课 - 基础物理课程节选

Since Frank Rich, another New York Times columnist, and numerous bloggers have all written essentially the same thing as Mr. Krugman, it is obvious that a new line of attack against conservatives is emerging.

CENTERFORSECURITYPOLICY: Free speech, but not for me?

Meanwhile, the elegantly restrained, two-story Chinese restaurant Lu Yu, courtesy of LTW, avoids the trap of obvious chinoiserie: Stacked abacuses line a wall near the entrance, while pale celadon porcelain bricks adorn the upstairs entryway.

WSJ: Stays: Conrad Beijing

And, if the Ceyhan route cannot be justified, the obvious alternative is to build an extra line to Supsa in Georgia.

ECONOMIST: Oil out of troubled waters | The