我家有四口人，爸爸和妈妈，姐姐和我。我的家庭很幸福。用英语翻译。

我家有四口人，爸爸和妈妈，姐姐和我。我的家庭很幸福。 

英文翻译：

There are four people in my family, my father and mother, my sister and I. My family is very happy. 

语法分析：

my father and mother, my sister and I

作four people的同位语，对其进行解释或补充说明。

重点词汇解释：

• family

|ˈfæməli|

(pl. -ies)

[可数名词+单数/复数 动词] a group consisting of one or two parents and their children 家，家庭（包括父母子女）

• happy

|ˈhæpi|

(happier, happiest)

giving or causing pleasure 给予（或带来）快乐的；使人高兴的；幸福的

there are four people in my family, my parents, my sister and me. My family is very happy

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