如ㄖㄨˊrú履ㄌㄩˇlǚ薄ㄅㄛˊbó冰ㄅㄧㄥbīng

  1. 好像走在薄冰上。比喻處事極為謹慎小心。《詩經·小雅·小旻》：「戰戰兢兢，如臨深淵，如履薄冰。」漢·曹操〈請爵荀彧表〉：「陛下幸許，彧左右機近，忠恪祗順，如履薄冰。」也作「如履如臨」。似小心翼翼、戰戰兢兢、如臨深淵

英lit. as if walking on thin ice (idiom)​, fig. to be extremely cautious, to be skating on thin ice