1 sentence

1. 海岸警卫队的直升机无法在夜间飞行。

   hǎi'àn​jǐng​wèi​duì de zhí​shēng​jī wú​fǎ zài yè​jiān fēi​xíng.

   Coast Guard helicopters can't fly at night.

   Source: OpenSubtitles