hái / zi / men / xué / huì / le / xīn / de / shēng / rì / gē / zhǔn / bèi / zài / jù / huì / shàng / biǎo / yǎn

孩子们学会了新的生日歌，准备在聚会上表演。

The children learned a new birthday song and prepared to perform it at the party.