love affair

英 [ˈlʌv əfeə(r)]

美 [ˈlʌv əfer]

n. 风流韵事; (非夫妻间的)性关系; (对某事)极大的热情，强烈的兴趣

Collins.1

牛津词典

noun

风流韵事；（非夫妻间的）性关系
a romantic and/or sexual relationship between two people who are in love and not married to each other
（对某事）极大的热情，强烈的兴趣
great enthusiasm for sth
1. the English love affair with gardening
  英格兰人对园艺的热爱

N-COUNT 风流韵事；（非夫妻或同居情侣间的）恋爱（或性）关系
Alove affairis a romantic and usually sexual relationship between two people who love each other but who are not married or living together.
1. ...a stressful love affair with a married man.
  与一个已婚男人的痛苦婚外情
N-SING 极大的喜爱；强烈的的兴趣
If you refer to someone'slove affair withsomething, you mean that they like it a lot and are very enthusiastic about it.
1. ...the American love affair with firearms...
  美国人对枪支的癖好
2. Tom's love affair with France and most things French knew no bounds.
  汤姆对法国和大多数法国东西都无比热爱。

noun