以上二词均用作介词,都表示“在……之上”,但区别如下。1.above表示位置高,但不一定是“直上、垂直”的位置,而over则表示“直上、垂直”的位置。above与它下面之物并不接触,而over则与它下面之物可以完全接触,部分接触或完全不接...[继续阅读]

    1.用作副词,意为“(人或舰船、车辆等)并肩,并列,并驶”。‖Soldiers marched in the streets four abreast.战士们在大街上行进,每四人成一横排。2.本词的常用习语。be/keep abreast of(在知识、技术等方面)与……并进;不落后于。‖We should keep abr...[继续阅读]

    用作副词。1.在国外;往国外。‖He returned to his motherland after living abroad half his life.在国外生活了半生以后,他回到祖国。2.广布;散布。‖There is a rumour abroad that a rare wild animal was caught in the mountains.一个谣言广布说,在山间捉到一只奇异的...[继续阅读]

    用作名词。1.离开;不在。‖During your absence many newly-born affairs have happened.你不在期间发生了许多新生事物。2.缺乏;不存在。‖Their factory developed a new-type robot in the absence of any information about automation materials.在没有任何自动化资料的情况...[继续阅读]

    以上各词均为名词,表示“缺乏,不足”。1.lack意为“缺乏”,表示数量不足的最普通用语,可以用于物品、食品、物质、思想等的缺乏不足。‖There is a lack of marine products in the market,so their prices begin to rise up.市场上海产品缺乏,所以它们...[继续阅读]

    1.用作形容词。1)缺席的;不在的(与from连用)。‖Many students are absent (from school) for bad weather today.今天由于天气不好,许多学生缺席。2)(精神)恍惚的;茫然的。‖She often has an absent expression since she was badly irritated.自从她遭受严重刺激以后...[继续阅读]

    用作动词。1.吸收(液体、光、热等);吸取(知识、经验等)。‖Henry absorbed much knowledge from the book he studied.亨利从他所读的书中吸取大量知识。2.吸引……的注意力或兴趣;使专心。‖Detective stories absorbed the youth so much that he even forgot foo...[继续阅读]

    以上各词均为动词,有“吸引;使全神贯注”之义。1.absorb意为“吸引;使专心”,含义是吸引人们感情上的爱好、兴趣和注意力,因而使人专心和全神贯注。‖Children are absorbed in the new toy.They all ask their parents to buy it.儿童们被那种新玩具...[继续阅读]

    用作名词。1.吸收(如热、光、液体等)。‖With the absorption of moisture,quick lime becomes wet quickly in air.由于吸收潮气,生石灰在空气中很快变潮湿。2.专心(做某工作)。‖Owing to his absorption in study,the student’s knowledge grows quickly day by day.由于学...[继续阅读]

    用作动词,意为“戒除;禁绝”(本词可与from连用)。‖We should turn hardworking and thrift into our virtue and abstain from luxuries.我们应当养成勤俭的美德,戒除奢侈。...[继续阅读]