at a stroke
1. 一下子
She solved the problem at a stroke.
她一下子解决了问题。
on the stroke
1. 准时地
They arrived on the stroke.
他们准时到达。
习惯用语stroke sb. down1.平息某人的怒气stroke sb. [sb.'s hair] up (the wrong way)1.倒捋毛发, 触怒某人, 犯某人之忌
at a stroke
1. 一下子
She solved the problem at a stroke.
她一下子解决了问题。
on the stroke
1. 准时地
They arrived on the stroke.
他们准时到达。