at a stroke

基本解释

Several ministries, including transport and environment, lost 5% or more of their planned budgets for 2010-11 at a stroke.
包括运输和环境等部门2010-11年度预算一下子就比原计划少了5%。
At a stroke, we can reduce 10% of our carbon emissions into the atmosphere by making Sunday a low-carbon day and at the same time make ourselves healthier and happier.
把星期天定为低碳日，我们就可以一下子削减10%排入大气的二氧化碳，同时也使我们自己更健康、更快乐。
Though such actions will not resolve anything at a stroke, they would over time strengthen moderates in both camps.
虽然这样的行动无法一举解决任何问题，但会延长时间，增强双方阵营的温和势力。

"We estimate in WHO that over thirty million lives can be saved in the next ten years by simple measures -- reducing the level of salt by fifteen to twenty percent, reducing the amount of tobacco, and increasing the number of people who are at risk of a heart attack and stroke to be on simple preventive treatment."
Chronic diseases have a major role in the healthcare costs, so if you look at these chronic diseases, heart disease, stroke, cancer and Diabetes we find that seven out of ten of all deaths are now due to chronic diseases, whereas, it was a very small fraction in 1900.
慢性疾病是医保费用中的一个大头,你看看这些慢性疾病,心脏病,中风,癌症和糖尿病,就会发现如今十分之七的死亡,都是源于慢性疾病,然而,这在1900年仅占很小一部分
耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选
Parkin took home a silver medal in the 200-meter breast stroke at the 2000 Summer Olympics in Sydney.

It also solves, entirely and at a stroke, that offshoring of profits by US corporations.
FORBES: Finally! A Sensible Idea About US Tax Policy