他们是幸福的一家人！用英语怎么说啊

英语是：They are a happy family!

解释：
they 英[ðeɪ] 美[ðe]
pron. 她们; 他/她/它们; 人们，大家; 政府，当局;
[例句]The two men were far more alike than they would ever admit
那两个人也许不承认，可他们非常相像。

happy 英[ˈhæpi] 美[ˈhæpi]
adj. 快乐的; 幸福的; 巧妙的; 〈口〉有点醉意的;
[例句]Marina was a confident, happy child
玛丽娜是个自信、快乐的孩子。

family 英[ˈfæməli] 美[ˈfæmli]
n. 家庭; 家族; 孩子; 祖先;
adj. 家庭的; 一家所有的; 属于家庭的; 适合全家人的;
[例句]There's room in there for a family of five
那儿能住下五口之家。

they are happy families

They are a happy family!

they are happy family

婆婆对儿媳真好