险阻 (xiǎn zǔ) 是指障碍或危险的障碍，通常指道路或通道上的障碍。它来源于汉语，可以翻译为 "obstacle" 或 "hindrance"。

下面是一些险阻的英文例句及其中文翻译：

The road was blocked by a fallen tree, creating a dangerous obstacle for drivers. (道路被一棵倒树挡住，对司机来说是一个危险的障碍。)
The soldiers had to navigate through a minefield, facing numerous obstacles and hazards. (士兵们必须穿过一片地雷场，面对许多障碍和危险。)
She encountered numerous hindrances in her efforts to start her own business. (她在努力开创自己的生意时遇到了许多阻碍。)
The high walls and locked gates presented an obstacle to the burglars. (高高的墙和锁着的大门对窃贼来说是一个障碍。)