Elderly people easily become socially isolated.
上了年纪的.人很容易变得与社会隔绝。
Carnivores are usually socially complex mammals.
食肉动物通常是有着复杂的社会关系的哺乳动物。
For socially ambitious couples this is a problem.
对在社会地位方面有野心的夫妇来说，这是个问题。
We have known each other socially for a long time.
我们在社交场合相识有很长时间了。