on one's toes 警觉的; 准备行动的alert; ready A policeman has to keep on his toes all the time he's on duty.警察在执勤时必须时刻保持警覺。
He stepped on my toes.他踩着我的脚趾了。 There is a hole in the toe of my sock.我的这只袜子的脚尖有一个洞。
toe还可用作动词,意思是“以趾踏触, 用脚尖走；动脚尖”。
［词源］＜古英语ta(脚趾)
