恻隐之心 Bowels of compassion (mercy) . Sense of pity. eg：John contributed much to the Tsunami sufferers, he has the milk of human kindness. 中英俚语俗语来源：孟子：恻隐之心，人皆有之。 反义词：嗜杀成性 T...

草木皆兵 Take every bush for a bugbear. Fields have eyes , and woods have ears. Afraid of ones own shadow. eg：The defeated soldiers are so frightened that they take every bush for a bugbear. 中英俚语俗语来源：东晋书：坚登...

操纵自如 Like wax in ones hands As clay in the hands of the potter. eg：He is well experienced and handles the machine like wax in his hands. 反义词：老虎吃天，无法下爪 To catch a Tartar....

操之过急 Draw ones bow before the arrow is fixed. Leap over the hedge before one comes to the stile. eg：Everyone in the line has his turn，you should not jump the gun. 同义词：欲速则不达 Haste trips over its own heels. 反义词...

步人后尘 Tread in ones footsteps. Follow upon ones heels. Take a leaf out of anothers book. Follow the beaten track. eg：Harold treads in his fathers footsteps to become a lawyer. 同义词：萧规曹随 Go on in the same old rut. 反义...

不自量力 Go beyond ones depth. Overreach oneself. Bite off more than one can chew. Throw straws against the wind. eg：Trying to solve that problem is to 90 beyond her depth for Lily. 中英俚语俗语来源：战国策齐策三：荆甚...

不知所措 Stand at gaze. To be at loose ends. To be up a tree. eg：He was at a loss as to what to do next. 中英俚语俗语来源：三国志吴志诸葛恪传：哀喜交并，不知所措。 同义词：六神无主 To be all at sea...

不翼而飞 Vanish from sight. Nowhere to be found. eg：Dont leave your purse there, it will vanish from sight in no time. 中英俚语俗语来源：列子：珠无腔而行，玉无翼而飞。...

不遗余力 Leave no avenue unexplored. Leave no stone unturned. Go to all lengths. Tooth and nail. Move heaven and earth. eg：He will support you for all he is worth. 中英俚语俗语来源：战国策：王曰，秦之攻我也，不遗...

不言而喻 It goes without saying. Needless to say. eg：It goes without saying that the truth is on our side. 同义词：不在话下 To be taken for granted....