在英语中，表示"在家"的常用词有"at home"和"at my/your/his/her/its/our/their home"。
"At home"是一个副词短语，
意思是"在家里"。例如：
I'm at home now. (我现在在家。)
Are you coming over to my house or should I come to your place? I'm already at home. (你来我家还是我去你家？我已经在家了。)
"At my/your/his/her/its/our/their home"是一个介词短语，
意思是"在某人的家里"。例如：
I'll be at my home all day tomorrow. (明天整天我都在家。)
She's at her home right now, but she'll be back at the office in an hour. (她现在在家，但一小时后会回到办公室。)
总的来说，"at home"是指在家里的一般状态，而"at my/your/his/her/its/our/their home"则是指在某个特定的家里。
