isolate/isolation

isolate /ˈaisəleit/ vt. 使孤立；隔离，隔开；分离出来：Do not isolate oneself from others. 不要把自己孤立起来。The writer isolated himself in his study. 那位作家把自己关在书房里。The patients should be isolated from the rest. 这些病人应该与其他人隔离。

 isolation /ˌaisəuˈleiʃən/ n. [u] 隔离，孤立：the isolation of older people老年人的孤立Environmental problems must not be seen in isolation from social ones.不能脱离社会问题孤立地看待环境问题。The millionaire lived in complete isolation from the outside world.这位富翁过着与世隔绝的生活。