因為划算而綁在一起
兩個意思共用同一個畫面：關係是真的，理由是算的。差別只在站在那裡的是一對夫妻，還是兩個國家、兩家公司。
noun · C1
A marriage that two people agree to for a practical reason — money, papers, safety, or a family's position — rather than because they love each other.
權宜婚姻
核心畫面
One way to hold this phrase: two people standing at a wedding, everything about the ceremony real and legal, and the reason for it sitting off to one side — a passport, a shop, a piece of land. The bond is genuine; the motive is a calculation. Once you can see that picture, every other use of the phrase is just a different pair of people standing in that spot.
可以想成這樣一個畫面：兩個人站在婚禮上，儀式、證書、法律效力全都是真的，但真正的理由擺在旁邊——一張居留證、一間店、…更多收起
可以想成這樣一個畫面：兩個人站在婚禮上，儀式、證書、法律效力全都是真的，但真正的理由擺在旁邊——一張居留證、一間店、一塊地。關係確實成立了，動機卻是算出來的。把這個畫面記住，後面那個「國家和公司之間的結盟」就只是換了站在那個位置上的人而已。From the word’s history
The phrase came into English word for word from French mariage de convenance, where convenance means an arrangement that suits your needs — so the calculated motive was built into the phrase from the start.
這個詞是從法文 mariage de convenance 一字一字仿譯進英文的。法文的 convenance 指「合乎自己需要的安排」，所以「為了現實好處」這層意思，從它進入英文的第一天就在裡面了，不是後來才加上去的。
Wiktionary entry for marriage of convenience, etymology_text supplied in the evidence packet (source_ref kaikki:3f6f69a190036ae4:1485691251)
One branch