拔腿[bá tuǐ]
词典take a [make] a step [多用于]
拔腿[bá tuǐ]
（迈步） take a [make] a step [多用于]:
例：拔腿就跑
show a clean pair of heels; beat it as fast as one can; immediately take to one's heels; make the best use of one's legs; start running away at once; take to one's legs as fast as one can; turn and scamper off;
拔腿就追
give instant chase