when one's back is turned
used of a situation in which one is busy with something else or is not looking
当某人不专心时
[短语]
to throw sb under the bus
to gain advantage at the cost of someone else's suffering or loss
为了某人的利益而牺牲某人
[短语]
to stab sb in the back
to be disloyal and ungrateful to someone who has trusted or supported one
背叛某人
[短语]
snake in the grass
a person who has a tendency to deceive or mislead others and is very likely to betray their trust
不守信用的人
[短语]
to sell sb down the river
to be unfaithful or disloyal to someone so as to gain profit oneself
[短语]
to feed sb to the wolves
to make no effort to save or defend someone, particularly when they are being severely criticized or being treated unfairly
不做任何事来保护某人
[短语]
to drop a dime on sb
to secretely gather information about a person or group in order to expose them to a person of higher authority, often for one's personal gain
为了个人利益而举报某人
[短语]
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