3 sentences for 嘻 (xī)

1. 他冲着大家嘻地一笑。

   tā chòng​zhe dà​jiā xī de yī xiào.

   He gave everyone a cheeky grin.

   Source: Dong Chinese Dictionary

2. 嘻，这主意真不错！

   xī, zhè zhǔ​yi zhēn bù​cuò!

   Heh, that's a really good idea!

   Source: Dong Chinese Dictionary

3. 嘻！竟有这种事！

   xī! jìng yǒu zhè zhǒng shì!

   Ha! I can't believe such a thing happened!

   Source: Dong Chinese Dictionary