sell someone down the river

US /sel ˈsʌm.wʌn daʊn ðə ˈrɪv.ər/
UK /sel ˈsʌm.wʌn daʊn ðə ˈrɪv.ər/
"sell someone down the river" picture
1.

裏切る, 見捨てる

to betray someone for one's own benefit, especially someone who trusts you

:
I can't believe he would sell me down the river after all we've been through.
私たちが経験したすべての後で、彼が私を裏切るなんて信じられない。
The politician was accused of selling his constituents down the river by voting against their interests.
その政治家は、有権者の利益に反する投票をすることで、彼らを裏切ったと非難された。