A 开头单词

at ordinary times 平时

at one's worst 最差的一面；在情况最糟糕的时候

at one's wits end 智穷才尽；不知所措

at one's wit's end 不知所措；智穷力竭

at one's request 依照某人的请求

at one's pleasure 随心所欲

at one's own risk 自担风险，由自己负责

at one's option 随意

at one's fingertips 了如指掌；在手边

at one's elbow 近在手边

at one's earliest convenience 在某人方便的时候尽早…

at one's convenience 在某人方便之时

at one's age 在……年代里 在……年龄

at one with （与...）一致

at one time 曾经，一度；同时

at one stroke 一举；一笔；马上

at one sitting 一口气地

at one remove 隔一代（之嫡亲）

at one point 一度；在某处；在某一时刻

at one fling 一鼓作气地