at first sight [中考]乍一看,初看起来 at last [中考]终于,最后 at all costs [中考]不惜任何代价 at work [中考]在工作,忙于 at random [中考]随意地,任意地 at present [中考]现在, 目前 at any rate [中考]无论如何,至少 at first [中考]起先,首先 at hand [中考]在手边,在附近 at heart [中考]在内心,实质上 at home [中考]在家(里) at least [中考]至少,最低限度 at a loss [中考]困惑,不知所措 at length [中考]终于,最后,详细地 at once [中考]立刻,马上 at times [中考]有时,偶尔 at a time [中考]每次,一次 at one time [中考]同时,曾经,从前曾 at the same time [中考]但是,然而 at (the) best [中考]充其量,至多 at all events [中考]无论如何 at breakfast [中考]在早餐时 at breakfast /lunch /supper [中考]早/午/晚餐时 at first / last [中考]起先,开始的时候/ 最后,终于 at intervals [中考]不时,时时 at least / most [中考]至少/ 至多 at night [中考]在晚上,在夜里 at no time [中考]从不,决不 at school [中考]在学校,在上课 at the age of [中考]在……几岁时 at the beginning of [中考]在……起初,开始 at the cost of [中考]以 …… 为代价 at the mercy of [中考]在 …… 支配下 at the moment