拖: pull; drag; draw; haul痕: mark; trace拖后: hoishloh拖黑边: following blacks拖后内锋: withdrawn striker拖航阻力: towage resistance拖后前进: policeman拖航总承包价: lumsum towage price拖后前卫: halfback拖航直升机: towing helicopter拖后腿: hinder sb.; be a drag on sb.; clip the wings of; hold sb. back; impede sb.; tip one's hands拖航责任限制: limitation of liability under circumstances of towage