Elderly people easily become socially isolated.

　　上了年紀的人很容易變得與社會隔絕。

　　Carnivores are usually socially complex mammals.

　　食肉動物通常是有著復(fù)雜的社會關(guān)系的哺乳動物。

　　For socially ambitious couples this is a problem.

　　對在社會地位方面有野心的夫婦來說，這是個問題。

　　We have known each other socially for a long time.

　　我們在社交場合相識有很長時間了。