to do something secretly or deceitfully against someone
hacer algo en secreto o de manera engañosa contra alguien
"She went behind my back and told the manager everything."
"Ella fue detrás de mi espalda y le contó al gerente todo."
To falsify financial records to hide losses or theft.
too good or powerful to compete with
if legal redress is available but not delivered in time, it...
good times follow bad times
to test the limits or performance of an AI system
to develop or become successful over time