COMB in ADV [ADVERB after verb] (与head, feet等名词连用)表示“(移动时身体某一部位)朝前(或在先)地” -first combines with nouns like 'head' and 'feet' to indicate that someone moves with the part that is mentioned pointing in the direction in which they are moving. (与head, feet等名词连用)表示“(移动时身体某一部位)朝前(或在先)地”