xiǎozǔ qún míng zuìhǎo qīngchu yīdiǎn, bǐrú “Dì-wǔ Zǔ Shèhuì Diàochá Zuòyè”

小组群名最好清楚一点，比如“第五组社会调查作业”。

The group chat name should be clearer, for example 'Group Five Social Survey Assignment'.