托福常用短语（a4）

as mod as sb 与某人一样时髦

as the saying goes 常言道

at first blush 乍看

at hand 近旁;在手旁

at issue 争论中

at loose ends 无职业;不安定

at my expense 由我出钱

at odds 争执

at one's finger's tips 了如指掌

at one's service 随时提供服务

at one's wit's end 不知所措

at one's wits' end 志穷计尽

at sixes and sevens 混乱的

at stake 在危险中

at the drop of a hat 马上

at times 有时;偶然

at your disposal 听你的

aware of, be 了解