A police clampdown on car thieves hit a snag when villains stole one of their cars.警方打击偷车贼的行动遭遇了一点小挫折:匪徒偷走了一辆警车。The grand opening hit a snag when no one could find the key.盛大的开幕典礼上出了个小小的意外: 谁也找不到那把钥匙。Our boat hit a snag in the water.我们的船撞上了暗桩。We hit a snag with our travel plans. = We ran into a snag with our travel plans. 我们的旅行计划遇上了意外麻烦。