Bù / duì / zài / yè / sè / yǎn / hù / xià / qiǎng / dù / hé / liú / xùn / sù / zhàn / lǐng / le / duì / àn。

部队在夜色掩护下抢渡河流，迅速占领了对岸。

Under cover of darkness, the troops forced a river crossing and quickly occupied the opposite bank.