to separate one person, group, or thing from other people or things

孤立，隔离:

The town was isolated by the floods.

由于洪水，这个镇与外界隔绝。

The US has sought to isolate Cuba both economically and politically.

美国一直想在经济和政治上孤立古巴。

Presley's phenomenal early success isolated him from his friends.

普雷斯利年纪轻轻就成就非凡，这使他在朋友中陷入孤立。

New-born babies must be isolated from possible contamination.

新生儿必须隔离，以免受感染。

if you isolate an idea, problem etc, you consider it separately from other things that are connected with it

分隔，区别看待〔观点、问题等〕:

It is impossible to isolate political responsibility from moral responsibility.

不可能把政治责任和道德责任分隔开来。

[technical] to separate a substance, disease etc from other substances so that it can be studied

分离〔物质、疾病等以作研究〕:

The hepatitis B virus has been isolated from breast milk.

乙型肝炎病毒已从母乳中分离出来。