如ㄖㄨˊ履ㄌㄩˇ薄ㄅㄛˊ冰ㄅㄧㄥrúlǚbóbīng

  1. 如同走在薄冰上般小心。比喻處事極為小心謹慎。例 「戰戰兢兢，如履薄冰」。

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