Elderly people easily become socially isolated.

　　上了年紀(jì)的人很容易變得與社會(huì)隔絕。

　　Carnivores are usually socially complex mammals.

　　食肉動(dòng)物通常是有著復(fù)雜的社會(huì)關(guān)系的哺乳動(dòng)物。

　　For socially ambitious couples this is a problem.

　　對(duì)在社會(huì)地位方面有野心的夫婦來說，這是個(gè)問題。

　　We have known each other socially for a long time.

　　我們?cè)谏缃粓?chǎng)合相識(shí)有很長時(shí)間了。