1 a fifth time和the fifth time 2 a great deal和a good deal 3 a great many 表示"许多,大量"的一些短语 4 a kind of, this kind of, many kinds of和a sort of 5 a must和a need 6 a room, many rooms和 much room 7 ability, capability, capacity, aptitude, talent, gift, faculty和genius 8 able, capable和competent都可以表示"有能力的",均可作定语或表语,但有区别 9 aboard, abroad和board 10 abound with和abound in 11 absent in和absent from 12 access和excess 13 accomplish, complete和finish 14 accomplishment, achievement, attainment, exploit和success 15 according to和according as 16 account, account for和on account of 17 accuse和charge均可表示"指控,指责,控告",但有区别 18 ache和pain 19 across和through ……
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