2015-06-09
xredued04
ask (that) sb. (should) do 要求某人应该做某事(虚拟语气)
ask for a leave 请假
ask sb. for advice 取得某人的建议
ask some questions of sb. 向某人提问(书面语)
at a distance 有一些距离、在远处
at a great depth 在很深处
at a loss 不知所措、困惑不解
at a low/high price 价格低(高)
at a low/high speed 速度很慢/快地……
at a mouthful 一口、满口
at a safe speed 以安全速度行驶
at a speed of 以……的速度行驶
at a time 一次;有时、曾经
at first blush 猛一看，乍一看
at full speed 全速前进
at least 至少、最少
at least…if not more 如果不是更多，至少也……
at most 最多、至多
at one time 曾经、以前
at present 现在
at that very moment 就在那个时候
at the ball 在舞会上
at the beginning of 在……的开始
at the bottom of 在……的底部
at the cost of 以……为代价
at the crossing 在十字路口
at the invitation of sb. 应某人邀请