履带

履带	lǚ dài	caterpillar track (propulsion system used on bulldozers etc) / (literary) shoes and belt
履	lǚ	shoe / to tread on
带	dài	band / belt / girdle / ribbon / tire / area / zone / region / CL:条 / to wear / to carry / to take along / to bear (i.e. to have) / to lead / to bring / to look after / to raise