It was gray and dusty, and sweat had streaked long rivulets across his cheeks.

那张脸是灰糊糊的，满是尘土，汗水在两颊上划着条条长沟。

To pour out this in undulating rivulets of rhapsody is apparently the only motive of its ascension.

显然可见，息吐纳为雀起飞中动。

The tears coursed down her cheeks—not freely, however, for when they came into contact with her heavily beaded eyelashes they assumed an inky color, and pursued the rest of their way in slow black rivulets.

眼泪沿着她的面颊往下流——可不是畅通无阻地流，因为眼泪碰到画得浓浓的睫毛之后就变成了黑墨水，像两条黑色的小河似的慢慢地继续往下流。