relationship和relation都是指人或事物之間的聯系。relationship指人時含義是有著很深感情的緊密關系，如：her ?relationship with her husband；這兩個詞都可以指相互關照、互為依賴的事物，如：the ?relation/relationship between temperature and ?humidity溫度和濕度的關系。如果指人和組織之間的壹種比較正規或松散的關系，就多用relations，如：The local community has good ?relations with the police.?
壹、relation
英 [r?'le?(?)n]美 [r?'le?n]
n.關系；聯系；親戚；陳述；參考
1. ( connection ) （事物之間的）聯系，關系，關聯
There is an obvious relation between diet and health.
飲食和健康顯然有關系。
to bear no relation to sth
與…無關；與…沒有聯系
The interpretation bore no relation to the actual words spoken.
這壹闡釋與實際所說的話沒有關聯。
2. ( relative ) 親戚；親屬
He's a distant relation.
他是壹位遠親。
3. < 正式 > ( act of narrating ) 講述，敘述（指行為）
the relation of the tale of her misfortune
對她不幸經歷的講述
4. < 正式 > ( account, narrative ) 講述，敘述（指內容）
a relation of the story by somebody else
別人講述的這個故事
5. 律 ( principle ) 回溯
6. 律 ( statement ) 告發
7. 數, 邏 ( association ) 關系（式）
8. 數, 邏 ( set of ordered pairs ) 序偶集；有序對集合
雙語例句
1. Franco-American relations
法美關系
2. I've got relations in London.
我有親戚住在倫敦。
3. relations between capitalists and workers
資本家和工人之間的關系
4. Relations between the two companies had, consequently, never been close.
因此，兩家公司的關系從來沒有親密過。
5. Some Afro-Caribbeans are rejecting the whole race relations industry.
壹些非洲裔加勒比人在抵制整個種族關系運動。
二、relationship
英 [r?'le?(?)n?p]美 [r?'le?n'?p]
n. 關系;聯系;浪漫關系;血緣關系
1.?( connection )?關系；聯系
There is no relationship between the two events.
這兩個事件之間沒有聯系。
the relationship between sth and sth
…與…之間的聯系
a?relationship between?diet?and?cancer
飲食和癌癥之間的關系
What is?the relationship between?language?and?thought?
語言和思維有什麽聯系？
2.?( family tie )?血緣關系；姻親關系
What is your relationship to the patient?
妳是病人的什麽人？
3.?( personal connection )?（人、團體之間的）關系，聯系
We have a good relationship.
我們關系很好。
a working relationship
同事之間的工作關系
He and his boss have always had?a?good?working relationship.
他與上司壹直保持著良好的工作關系。
Our?working relationship?had become strained.
我們的工作關系變得緊張了。
sb's relationship with sb
某人與某人之間的關系
4.?( love affair )?感情關系；戀愛關系；性關系
to have a relationship with sb
與某人有戀愛關系
She had?had a relationship with?a married man.
她曾與壹名已婚男子有染。
to be in a relationship
在談戀愛
I'm not in a relationship?at the moment.
我目前沒有談戀愛。
雙語例句
1. Business?relationships are necessarily rather formal.
商業關系必然很正式。
2. He viewed all his?relationships rather negatively.
他相當消極地看待自己所有的人際關系。
3.?relationships that are based on an imbalance of power
權利不均衡基礎上建立的關系
4. problems in interpersonal?relationships
人際關系中的問題
5. His love life was complicated, and involved intense?relationships.
他的愛情生活非常復雜，幾段感情都是轟轟烈烈。