大开眼界 Open a persons eyes. Broaden ones horizon. See the elephant. An eye-opener. eg：Travelling opens a persons eyes to the outside world. 反义词：鼠目寸光 See no further than ones nose....

大惊小怪 Much matter of a wooden platter. Like a hen with one chicken. A storm in a teacup. Go off the deep end. Much ado about nothing. Look like a dying duck in a thunderstorm. Make a song and dance about something. eg：Such things h...

大惑不解 Beyond comprehension. Beyond one. Can make neither head nor tail of. eg：The government s policy is beyond comprehension of most of us. 中英俚语俗语来源：庄子天地：大惑者终身不解，大愚者终身不灵。...

大功告成 Come off with honours. Bring home the bacon. Come through with flying colours. eg：Our efforts come off with honours at last. 反义词：功亏一篑 Another course would have done it....

大公无私 The balance distinguishes not between gold and lead. eg：A good boss should deal with all workers in fair field and no favour. 中英俚语俗语来源：龚自珍龚定庵集论：且今之大公无私者，有杨墨之贤邪。...

大发雷霆 Come down like a ton of bricks. Explode with rage. Fly into ones tantrums. eg：The boss came down like a ton of bricks when he learned the bad news. 中英俚语俗语来源：三国志吴志陆逊传：今不忍小忿而发雷霆...

大打出手 Fall together by the ears. Come to grips with.认真应付(难题) eg：They argued first and then came to blows. 同义词：拳脚交加 Cuffs and kicks. 反义词：相安无事 Get along fairly well....

大吹大擂 Brag about. Bluff and bluster. A flourish of trumpets. Make much of. eg：He always brags about his past record. 中英俚语俗语来源：元曲选贾仲名萧淑兰：小的每与我大吹大擂者。 同义词：大张旗鼓...

寸草不留 Stripped bare. eg：The land had been laid waste before they built the factory. 同义词：斩草除根 Pluck up by the roots...

寸步不离 At ones elbow(heels). Hover over. eg：They love each other very much，the wife is always at her husbands elbow. 同义词：紧随其后 Follow hard after. 反义词：避之则吉 Steer clear of...