at the mercy of
任…摆布,在…前毫无办法powerless against
The enemy wereat the mercy of us.敌人在我们面前毫无办法。
leave sb to the tender mercy
吃(某人的)苦头,任凭(某人)宰割give to the cruel control of
I'll teach him to ski myself, rather than leave him to the tender mercy of the skiing instructor.我会亲自教他滑雪,而不让他吃滑雪教练的苦头。
without mercy
无情地by pitiless
He was treated without mercy.他受到无情地对待。
