dead set
ad. 绝断的, 坚决的
n. 拼命的努力, 猛烈的攻击
例句与用法：
She is dead set on becoming an actress.
她决心要当一名演员。
Jim intends to make a dead set at winning the tennis prize this year.
吉姆打算今年竭尽全力在网球赛中获奖。
The committee was dead set against this plan.
委员会坚决反对这一计划。
He's dead set on getting a new job.
他打定主意要找个新工作。