382．in ignorance of不知道……
383．be ignorant of (=lacking knowledge）對(duì)……不了解，不知道
384．(an) impact (on)對(duì)……的強(qiáng)烈影響
385．impose...on把……強(qiáng)加給
386．impress...on給……留下印象
387．make (leave) an impression on sb. =give sb. an impression給……留下印象
388．under the impression that有……的印象，認(rèn)為
389．improve sth. (make sth. better)把原物改進(jìn)
improve on (=produce or be sth. better than...)另做一物比原物更好
390．improve in (=get better)有改進(jìn)，好些
391．improvement in表示原物有改進(jìn)，好轉(zhuǎn)
392．include...in把……列在……里面
393．inclusive of把……包括在內(nèi)
394．independent of獨(dú)立的，不受約束的
395．indicative of表明，說(shuō)明
396．be indifferent to (=not interested in)對(duì)……漠不關(guān)心，冷淡，不在乎
397．(be) inferior to (=less good in quality or value)比……差；superior to比……好
398．inform sb. of sth.通知，告訴
399．be innocent of無(wú)罪的，無(wú)辜的
400．insist on (=order sth. to happen)堅(jiān)持要
401．instead of (in place of)代替，而不是……
402．instruct...in (=teach)教，指導(dǎo)，訓(xùn)練某人……
403．insure... for把……保險(xiǎn)（多少錢(qián)）；ensure使安全；assure...(of)使……確信，保證
404．insure...against保險(xiǎn)……以防
405．intend...for打算把……給
406．(be) intent on專(zhuān)心致志，堅(jiān)決
407．in the interests of符合……的利益
be interested in對(duì)……感興趣
408．interfere in干涉，interfere with打攪，干擾
409．a(chǎn)t intervals每隔一會(huì)兒，每隔一段距離
410．intervene in干預(yù)
411．invest in投資
412．be involved in (=become connected or concerned)卷入，參加
413．by itself (=alone, without help)單獨(dú)地，靠自己
414．in itself本身；of itself自發(fā)，自然
415．be jealous of妒忌
416．jump at (=to be eager to accept)搶著接受，
417．jump on (=scold, tell of)叱責(zé)
418．junior to sb.年紀(jì)較……輕，職位較……低
419．(be) keen on喜愛(ài)，渴望
420．keep a close watch on (=keep a sharp lookout for)密切注視
421．keep...to oneself (=keep secret)不告訴別人
422．to (the best of) one’s knowledge據(jù)……所知
423．a(chǎn)t large (=at liberty, free)在逃，逍遙法外
at large (= in general) 一般來(lái)說(shuō)，大體上
at large (= at full length; with details) 詳細(xì)地
424．lean against（背）靠著……
425．a(chǎn)t least 至少；at most 至多
426．(not) in the least 一點(diǎn)（也不），絲毫（也不）
427．a(chǎn)t one’s leisure 在……有空的時(shí)候
428．lend itself/themselves to 適合于（某用途）
429．a(chǎn)t length (=after a long time，at last) 終于
383．be ignorant of (=lacking knowledge）對(duì)……不了解，不知道
384．(an) impact (on)對(duì)……的強(qiáng)烈影響
385．impose...on把……強(qiáng)加給
386．impress...on給……留下印象
387．make (leave) an impression on sb. =give sb. an impression給……留下印象
388．under the impression that有……的印象，認(rèn)為
389．improve sth. (make sth. better)把原物改進(jìn)
improve on (=produce or be sth. better than...)另做一物比原物更好
390．improve in (=get better)有改進(jìn)，好些
391．improvement in表示原物有改進(jìn)，好轉(zhuǎn)
392．include...in把……列在……里面
393．inclusive of把……包括在內(nèi)
394．independent of獨(dú)立的，不受約束的
395．indicative of表明，說(shuō)明
396．be indifferent to (=not interested in)對(duì)……漠不關(guān)心，冷淡，不在乎
397．(be) inferior to (=less good in quality or value)比……差；superior to比……好
398．inform sb. of sth.通知，告訴
399．be innocent of無(wú)罪的，無(wú)辜的
400．insist on (=order sth. to happen)堅(jiān)持要
401．instead of (in place of)代替，而不是……
402．instruct...in (=teach)教，指導(dǎo)，訓(xùn)練某人……
403．insure... for把……保險(xiǎn)（多少錢(qián)）；ensure使安全；assure...(of)使……確信，保證
404．insure...against保險(xiǎn)……以防
405．intend...for打算把……給
406．(be) intent on專(zhuān)心致志，堅(jiān)決
407．in the interests of符合……的利益
be interested in對(duì)……感興趣
408．interfere in干涉，interfere with打攪，干擾
409．a(chǎn)t intervals每隔一會(huì)兒，每隔一段距離
410．intervene in干預(yù)
411．invest in投資
412．be involved in (=become connected or concerned)卷入，參加
413．by itself (=alone, without help)單獨(dú)地，靠自己
414．in itself本身；of itself自發(fā)，自然
415．be jealous of妒忌
416．jump at (=to be eager to accept)搶著接受，
417．jump on (=scold, tell of)叱責(zé)
418．junior to sb.年紀(jì)較……輕，職位較……低
419．(be) keen on喜愛(ài)，渴望
420．keep a close watch on (=keep a sharp lookout for)密切注視
421．keep...to oneself (=keep secret)不告訴別人
422．to (the best of) one’s knowledge據(jù)……所知
423．a(chǎn)t large (=at liberty, free)在逃，逍遙法外
at large (= in general) 一般來(lái)說(shuō)，大體上
at large (= at full length; with details) 詳細(xì)地
424．lean against（背）靠著……
425．a(chǎn)t least 至少；at most 至多
426．(not) in the least 一點(diǎn)（也不），絲毫（也不）
427．a(chǎn)t one’s leisure 在……有空的時(shí)候
428．lend itself/themselves to 適合于（某用途）
429．a(chǎn)t length (=after a long time，at last) 終于