1. 一了百了 get it over and done with2. 一无所长 have no special skill3. 一无所获 have gained nothing4. 一五一十in full detail5. 一文不值of no use whatsoever6. 一心一意 with undivided attention7. 一目了然 leap to the eye8. 一叶知秋The falling of one leaf heralds the autumn.9. 一丘之貉be tarred with the same brush10. 一帆风顺go off without a hitch(故障)11. 一字之差the change of one word12. 一时兴起by fits and snatches13. 一针见血hit the right nail on the head14. 一言为定That’s settled then.15. 一应俱全Everything needed is there.16. 一张一弛alternate tension with relaxation17. 一纸空文a mere scrap of paper18. 一事无成All have ended in smoke.19. 一鸣惊人come as a bombshell20. 一败涂地bite the dust21. 一知半解have scanty knowledge22. 一刻千金Every minute counts.23. 一览无遗in full view24. 一星半点a tiny bit25. 一举两得kill two birds with one stone26. 一语道破hit the mark with a single comment27. 一笑置之laugh out of court28. 一窍不通be Greek to one29. 一诺千金as good as one’s word30. 一清二楚as clear as crystal31. 一落千丈go to pot32. 一朝一夕in one day33. 一筹莫展be at one’s wit’s end34. 一意孤行go one’s own way35. 一蹴而就make it at one/a stroke36. 十万火急be in hot haste37. 十年寒窗persevere(坚持) ten years in one’s studies in spite of hardships38. 十全十美be perfect in every way39. 十拿九稳have …in bag40. 七上八下be greatly upset41. 七窍生烟in a great fury42. 七零八落go to reck(顾虑)and rain43. 八面玲珑dance and sing all weathers44. 人山人海a sea of faces45. 人之常情human nature46. 人云亦云echo one’s words47. 人心不古 Human hearts are not what they were in the old days.48. 人去楼空 When the master was absent, his mansion(大厦, 官邸, 公寓) was dead.49. 人各有志Every one has his own ambition.50. 人多智广More people means more ideas.51. 人多嘴杂Agreements is difficult if there are too many people.52. 人困马乏The entire force was exhausted .53. 人言可畏Opinion rules the world.54. 人穷志短poverty chills(使冷) ambition55. 人定胜天Man can conquer nature.[nature前无the ]56. 人面兽心a wolf in a sheep’s clothing57. 人情世故the way of the world58. 入乡随俗Do in Rome as the Romans do.59. 入木三分give a vivid picture of cut to the quick[注：此处原为vived，而其例子却是vivid，故可见vivid( 生动的)是正确的。

060619]60. 九牛一毛a drop in the bucket61. 九死一生have a close brush with death62. 力不从心One’s spirit is willing ,but the flesh is weak.63. 力挽狂澜stem(滋生, 阻止,逆行) the tide64. 了无瓜葛have nothing to do with65. 三番两次time after time66. 三缄其口hold one’s peace67. 于事无补be of little avail(效用)68. 大刀阔斧go to the whole hog(肥(公)猪)69. 大功告成come off with honors70. 大同小异be much of muchness (多量, 大量)71. 大言不惭blow one’s own trumpet72. 大快朵颐eat one’s fill73. 大海捞针look for a needle in a haystack74. 大智若愚Still waters run deep.75. 寸步不离keep…at one’s elbow76. 口若悬河 talk nine words at once77. 口是心非speak with one’s own tongue in one’s cheek78. 口蜜腹剑A honey tongue ,a heart of gall(胆汁，恶毒, 怨恨, 五倍子, 苦味).79. 千变万化The unexpected always happens.80. 千钧一发at the critical time81. 千载难逢It only happens once in a blue moon.82. 千锤百炼A good nail does not fear the hammer.83. 久别情疏 Out of sight ,out of mind .[此句更正规解释：眼不见心不烦.]84. 小题大做(作,但大陆习惯用“做”)fuss about trifles85. 夫唱妇随A good Jack makes a good Jill.86. 天衣无缝fit like a glove87. 天经地义a matter of course88. 天涯海角ends of the earth89. 支离破碎torn to pieces90. 不义之财ill-gotten money91. 不可一世as proud/vain（自负的） as a peacock(孔雀BNIW)92. 不可救药beyond remedy93. 不由自主in spite of oneself94. 不厌其烦take the trouble95. 不自量力go beyond one’s depth96. 不声不响as quiet as a mouse97. 不识抬举Bring a cow to the hall（礼堂） and she will run to byre(牛栏).98. 不择手段by hook(吊钩) or by crook(钩状物)99. 不知死活heedless（不注意的） of consequences100. 不知好歹don’t know chalk( 白垩) from cheese101. 不屈不挠keep one’s chin(下巴) up102. 不耻下问be not above asking questions103. 不速之客a gate-crasher104. 不偏不倚hold the scales even105. 不假思索speak impromptu (即席地)106. 不谋而合see eye to eye107. 不期而遇come across108. 不遗余力leave no avenue（大道，途径） unexplored(未调[勘]查过的) 109. 不翼而飞vanish from sight110. 匹夫之勇courage without discipline111. 比比皆是here and there and everywhere112. 切肤之痛No one knows the shoes pinches like the wearer.113. 日薄西山one’s day are numbered[人之时日无多]114. 毛骨悚然make one’s hair stand on end115. 化除为夷weather( 经受住) the storm116. 斤斤计较strain at gnat(小昆虫，小烦恼)117. 分文不值 not worth a dump118. 分身乏术One can’t be in two places at one time.119. 分秒必争Every minute counts.120. 分道扬镳go separate ways121. 六亲不认cut loose from old ties122. 文不对题be wide of the mark123. 火上浇油pour oil on the flame124. 心力交瘁cuì: burn the candle at both ends125. 心不在焉be absent-minded126. 心甘情愿of one’s own accord127. 心有余悸A burned child dreads（惧怕）the fire.128. 心灰意冷be in black despair129. 心血来潮on the impulse of the moment130. 心安理得have the peace of mind131. 心花怒放one’s heart sings with joy132. 心旷神怡feel on the top of the world133. 心直口快frank and out-spoken134. 心猿意马carry fire in one hand and water in the other135. 心满意足to one’s heart’s content136. 引以为荣plume(荣耀,羽毛)oneself on137. 引狼入室set a fox to keep the geese138. 以身作则set a good example for/to others139. 以卵击石throw a straw against the wind140. 以和为贵A bad compromise（折衷，妥协） is better than a good lawsuit. 141. 以柔克刚Willows are weak yet they bind other wood.142. 以德报怨return good for evil143. 水乳交融be hand and/in glove with144. 水性杨花unstable as water145. 水深火热be in deep water146. 水落石出The truth will out(vi, 暴露).147. 未老先衰decrepit (adj,衰老的，[di`krepit])before one’s age148. 未雨绸缪lay up against a rainy day149. 功败垂成a slip betwixt(prep.在……中间) cup and the lip150. 甘之如饴smack(咂（嘴）) one’s lips151. 甘拜下风play second fiddle(小提琴,干预，瞎搞)152. 世外桃源Utopia( 莫尔著的《乌托邦》里描述的一个小岛。