捅/捅刀子
He stabbed me in the back by going out with my ex.
他跟我前任约会相当于在背后捅我一刀。
Traitor [ˈtretɚ]
叛徒
You traitor. How could you side with them?
你个叛徒,你怎么能和他们一起?
You're a traitor.
你是一个叛徒。
背叛
She betrayed me for the last time.
这是她最后一次背叛我。
This is the last time I let her betray me.
这是最后一次我让她背叛我。
How dare you bite the hand that feeds you.
知恩不报
Double crossed
两面派
They double crossed me.
他们跟我耍两面派。
XX sold XXX down the river
某人背叛某人
He sold me down the river just because they offered him money.
他背叛我,就是因为他们给他钱了。
Judas!
犹大!
He's Judas!
他是犹大!