2 sentences

1. 他独自一人度过了这个漫漫长夜。

   tā dú​zì yī rén dù​guò le zhè gè màn​màn cháng​yè.

   He spent this long night all alone.

   Source: Dong Chinese Dictionary

2. 在这漫漫长夜里，他一直在思考未来的方向。

   zài zhè màn​màn cháng​yè lǐ, tā yī​zhí zài sī​kǎo wèi​lái de fāng​xiàng.

   During this long, long night, he kept thinking about his future direction.

   Source: Dong Chinese Dictionary