一家人如何英语表达 The Smiths 还是 The Smith's

一家人如何英语表达 The Smiths 还是 The Smith's 英语中一家人都要加the吗 如The Smiths are going to Canada on vacation.A.The smith B.Smiths C.The S the smith's family与he smiths 'family有什么区别 The Smiths后面用is还是are The smiths后用单数还是复数 the Smiths 是单数还是复数呢? 英语文章The Browns are the Smiths' neigubors.Mr Brown's name is The Smiths are Americans. the smiths同义词 the smiths likes minces The Smiths是单三么