基于利害关系的婚姻，权宜婚姻
a marriage in which the partners have married not because they love each other, but in order to get an advantage, such as the right to live in the other partner's country
Marriages of convenience carry the risk of prosecution and even deportation.
The personal ads are full of appeals for people to undertake marriages of convenience.
Members of the aristocracy often entered into what were essentially marriages of convenience.
In order to remain in the country, she was forced to enter into a marriage of convenience.
Theirs was a marriage of convenience rather than a love match.
See also: marriage (TWO PEOPLE)