家庭群聊用英语表达是：family group chat

family：n. 家，家庭(包括父母子女); (大)家庭(包括父母子女及近亲); 亲属; 家族。

group：n. 组; 群; 批; 类; 簇; 集团; (尤指流行音乐的)演奏组，乐团，乐队。

chat：v. 闲聊; 闲谈; 聊天; (尤指在网上聊天室)闲聊，交谈。

相关介绍

The new system expanded the role of family doctors.

新体制扩大了家庭医生的作用。

I always think of you as one of the family.

我一直把你当成自家人。

We think of you as one of the family.

我们把你看作家中的一员。

There are no significant differences between the two groups of students.

这两组学生没有明显差别。

The method is specifically designed for use in small groups.

这方法是专为小组活动设计的。

She asked her students to get into groups of four.

她让学生每四人分为一小组。