453. keep on doing sth. 繼續(xù)做某事
454. keep off 避開；不接近
455. keep up with 跟上；不落后；
456. keep a secret 保守秘密
457. keep away from 遠離
458. keep in touch . 保持聯(lián)絡
459. keep in mind 緊記
460. a key to sth. 解答；答案
461. a key for sth. … 的鑰匙
462. a key of sth. …的鍵
463. a kind of 一種，一類
464. all kinds of 各種各樣的
465. kind of 有點兒，有幾分
466. knock at 敲 （門， 窗）
467. knock into sb. 撞在某人身上
468. know about sth. 了解
469. be known for sth. 以…而聞名
470. lack of 缺乏
471. at large 逍遙法外的
472. at last 后，終于
473. be late for （school） 遲到
474. laugh at 嘲笑，漠視
475. lay out 布置；安排，陳列
476. lead to 導致；通向
477. league member 團員
478. learn of/about 得知；獲悉
479. learn one's lesson接受教訓
480. learn by heart . 記住
481. learn from sb. 向…學習
482. learn to do sth. 學習（技能）
483. at least 至少
484. leave about（around） 亂扔，亂放
485. leave behind 留下，遺留，超過
486. leave for 到。去，出發(fā)前往
487. leave over 留下
488. on the left 在左邊
489. lend sth to sb. 把……借給……
490. less than 少于，不到
491. do one's lessons 做功課
492. have lessons 上課
493. teach sb. a lesson 給…教訓
494. let in 讓…進來
495. let out 放出，發(fā)出；泄露
496. level of living 生活水平
497. lie on取決于，依賴，壓迫
498. live a happy life 過著幸福生活
499. full of life 充滿活力
500. life story傳記
501. give sb. a lift 讓…搭便車
502. light up點火，點燃
503. be like 像
504. feel like想要
505. look like似乎，好像
506. line up排成行，排成列
507. listen to 聽…（講話）
508. a little 一點兒；少量
509. little by little 漸漸
510. live on 靠…生活
511. make a living 謀生
512. high standards of living高水準的生活
513. living-room 起居室
514. before long 不久以后，很快
515. long ago 很久以前
516. long before 很久以前
517. no longer 不再
518. not …any longer 不再
519. long for sth. 渴望
520. look after 照料
521. look at 看；觀看
522. look for 尋找
523. look out 當心，小心
524. look up （在字典\參考書中）查尋
525. have a look 看一看
526. take a look 看一看
527. look forward to 盼望
528. a lot of =lots of 許多，大量
529. have lunch 吃午飯
530. be mad with joy 欣喜若狂
531. be mad about sth. 對…癡迷
532. major in 主修；專業(yè)
533. major idea主旨
454. keep off 避開；不接近
455. keep up with 跟上；不落后；
456. keep a secret 保守秘密
457. keep away from 遠離
458. keep in touch . 保持聯(lián)絡
459. keep in mind 緊記
460. a key to sth. 解答；答案
461. a key for sth. … 的鑰匙
462. a key of sth. …的鍵
463. a kind of 一種，一類
464. all kinds of 各種各樣的
465. kind of 有點兒，有幾分
466. knock at 敲 （門， 窗）
467. knock into sb. 撞在某人身上
468. know about sth. 了解
469. be known for sth. 以…而聞名
470. lack of 缺乏
471. at large 逍遙法外的
472. at last 后，終于
473. be late for （school） 遲到
474. laugh at 嘲笑，漠視
475. lay out 布置；安排，陳列
476. lead to 導致；通向
477. league member 團員
478. learn of/about 得知；獲悉
479. learn one's lesson接受教訓
480. learn by heart . 記住
481. learn from sb. 向…學習
482. learn to do sth. 學習（技能）
483. at least 至少
484. leave about（around） 亂扔，亂放
485. leave behind 留下，遺留，超過
486. leave for 到。去，出發(fā)前往
487. leave over 留下
488. on the left 在左邊
489. lend sth to sb. 把……借給……
490. less than 少于，不到
491. do one's lessons 做功課
492. have lessons 上課
493. teach sb. a lesson 給…教訓
494. let in 讓…進來
495. let out 放出，發(fā)出；泄露
496. level of living 生活水平
497. lie on取決于，依賴，壓迫
498. live a happy life 過著幸福生活
499. full of life 充滿活力
500. life story傳記
501. give sb. a lift 讓…搭便車
502. light up點火，點燃
503. be like 像
504. feel like想要
505. look like似乎，好像
506. line up排成行，排成列
507. listen to 聽…（講話）
508. a little 一點兒；少量
509. little by little 漸漸
510. live on 靠…生活
511. make a living 謀生
512. high standards of living高水準的生活
513. living-room 起居室
514. before long 不久以后，很快
515. long ago 很久以前
516. long before 很久以前
517. no longer 不再
518. not …any longer 不再
519. long for sth. 渴望
520. look after 照料
521. look at 看；觀看
522. look for 尋找
523. look out 當心，小心
524. look up （在字典\參考書中）查尋
525. have a look 看一看
526. take a look 看一看
527. look forward to 盼望
528. a lot of =lots of 許多，大量
529. have lunch 吃午飯
530. be mad with joy 欣喜若狂
531. be mad about sth. 對…癡迷
532. major in 主修；專業(yè)
533. major idea主旨