n (1)昨天(day before the present day)[U]：～'s paper/meeting 昨日的報(bào)紙/會(huì)議; Y～was his birthday.昨天是他的生日。If today is Monday，the day before～was Saturday.如果今天是星期一，前天就是星期六。Y～evening/afternoon/morning they went to an Italian hotel.昨天晚上/下午/早晨他們?nèi)チ艘患乙獯罄埖辍！挤础絫omorrow;
(2)近日，不久前;昔日(recent past;time not long past)[U，C]：dressed in～'s fashion 穿著過(guò)時(shí)的服裝;all our～s 我們度過(guò)的日日夜夜;the dim～s of mankind 人類(lèi)朦朧的往昔;Remember the hair styles of～? 還記得前不久流行的發(fā)型嗎?
adv(1)昨天(on the day preceding today)：Where did you go～? 昨天你去哪了?〖反〗tomorrow;
(2)最近(in the recent past)：I was not born～.我不是最近才出生的。(不要認(rèn)為我一無(wú)所知);～week 八天前：He has not seen his teacher since～week.八天以來(lái)，他沒(méi)有見(jiàn)過(guò)他的教師。