详细解释:n. 峡谷, 冲沟, 溪谷
英语解释：
名词 ravine:
a deep narrow steep-sided valley (especially one formed by running water)例句：
His enemy was close behind him, and the bridge over the ravine was rotten and swaying. Caught between the devil and the deep blue sea, he hesitated.敌人就在背后，而前面横跨在深谷之上的桥已经腐朽不堪，摇摇晃晃。他处在两难之中，犹豫了起来。