.介词短语ATat (a) high speedat (the) risk (of)at / by ones sideat / for a fraction ofat / from the outsetat / in the endat / on sightat / on the doubleat a / one timeat a disadvantageat a discountat a distanceat a glanceat a guessat a loose andat a lossat a low ebbat a moments noticeat a priceat a rate ofat a speed ofat a standstillat all costsat all eventsat an advantageat any costat any rateat breakfastat ease (with)at face valuea
