to overplay one's hand
01
过于自信反而坏事, 高估自己的位置
to fail to achieve success by having too much confidence in one's ability or position
disapproving
idiom
例子
He overplayed his hand by demanding a raise before proving himself.
还没证明自己就要求加薪,他太过自信,反而坏了事。
过于自信反而坏事, 高估自己的位置
还没证明自己就要求加薪,他太过自信,反而坏了事。