I knock down 1.撞倒,擊倒; 2.拆除 1.Alex was knocked down by a bus yesterday.2. Our house is being knocked down to make way for a new road.

　　A knock out 擊倒,擊昏 A rock falling down from the mountain knocked a tourist out.

　　I at large 1.一般地,大多數(shù);

　　2.未被捕獲的 1.in general,as a whole: Did the people at large approve of the government's policy?

　　2. free, uncontrolled: The criminals are still at large.(兇手依然逍遙法外)

　　A lay aside 1.放下,把..擱置一旁;

　　2.留存,儲存; 3A.放棄,拋棄 1.=put down:

　　Lay the book aside and rest your eyes for a while. 2.Lay aside money for one's old age.

　　3.Lay aside bad habits.

　　A lay down 1.放下;

　　2.規(guī)定,制訂 1. to lay down arms

　　2.to lay down the law.You can't lay down hard and fast rules.

　　A lay off (臨時)解雇,休息 They laid us off for 3 months.

　　I lay out 1.安排,布置,設計; 2.展開(以便使用或易見) 1.=make a plan for ,arrange: lay out a printed page/an advertisement.

　　well paid-out streets and avenues.(設計良好的街道和馬路).

　　2.The magnificent scene that was laid out before the climbers when they reached the summit.

　　A in the least 一點,絲毫 He is not in the least worried.

　　I leave behind 不帶,忘了帶,遺留,留下 Don't leave your coat (behind)!

　　I leave out 省略,遺漏 I left out the important point.

　　A lend itself to

　　A at length 最終,終于 =at last ,finally:

　　After two hours' drive they arrived there at length.

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