跟随主人出门伺候to wait upon one's master when going out

• 跟脚的

  someone who waits on a master

紧跟to follow closely

鞋大小合适well-fitting

• 他穿这靴子跟脚

  the boots he's wearing are a good fit

随即immediately

• 你刚出去，他跟脚儿就来找你

  he came to see you just after you'd gone out