dig one's feet (或 heels, toes) in 1. 采取坚定的立场；固执己见 The negotiators have been instructed to dig in their heels on the last two major issues. 谈判代表受命在最后两大问题上采取寸步不让的坚定立场。 dig one's heels in against stimulating the economy 坚决反对对经济采用刺激手段 2. 【棒】用脚刨出小坑以便击球时更好使力