孰: who能: ability; capability; skill当: proper; right能当: yoshimasa唱完,孰能: over and over, practice makes perfect能当量: energy equivalent; energy eqyivalent; engine equivalent; equivalent energy孰能生巧: practice makes perfect孰能无过: to err is human; to know everything is to know nothing不能当作: none能当机立断: i'm willing to make decisions能当朋友: a friend热能当量: thermal energy yield质能当量: mass-energy equivalence不当之爆: iggy pop不当之利: ill-gotten gains当之无愧: fully deserve (a title, an honour, etc.); merit the reward; be deserving; be worthy of 劳动英雄的称号, 他当之无愧。 he is worthy of the title of labour hero当之有愧: i find myself not up to the honor accorded me色当之门: the gate of zedan亚当之前: before adam正当之力: righteous might bloodlust量热计能当量: energy equivalent of calorimeter; energy equivalent of calorimetre质能当量原理: mass energy equivalence principle; principle of equivalence of mass and energy大而无当之物: white elephant万夫不当之勇: a match for ten thousand warriors; strength and bravery which ten thousand men cannot resist; dare take on ten thousand men人非圣贤,孰能无过: Men are not saints,how can they be free from faults?All men but saints are apt to make mistakes.To err is human.