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.
包括運輸和環境等部門2010-11年度預算一下子就比原計劃少了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.
把星期天定爲低碳日，我們就可以一下子削減10%排入大氣的二氧化碳，同時也使我們自己更健康、更快樂。
Though such actions will not resolve anything at a stroke, they would over time strengthen moderates in both camps.
雖然這樣的行動無法一擧解決任何問題，但會延長時間，增強雙方陣營的溫和勢力。

"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.
慢性疾病是毉保費用中的一個大頭,你看看這些慢性疾病,心髒病,中風,癌症和糖尿病,就會發現如今十分之七的死亡,都是源於慢性疾病,然而,這在1900年僅佔很小一部分
耶魯公開課 - 關於食物的心理學、生物學和政治學課程節選
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