1 sentence

1. 连续熬夜工作了三天，他的脸上露出了难掩的倦色。

   lián​xù áo​yè gōng​zuò le sān tiān, tā de liǎn shàng lù​chū le nán​yǎn de juàn​sè.

   After working late for three consecutive days, a look of weariness was unmistakable on his face.

   Source: Dong Chinese Dictionary