1 sentence

1. 他整天嘻嘻的，看起来没有任何烦恼。

   tā zhěng​tiān xī​xī de, kàn​qǐ​lai méi​yǒu​rèn​hé fán​nǎo.

   He's giggling all day and seems to have no worries at all.

   Source: Dong Chinese Dictionary