fifth-wheel

英['fɪfθw'iːl] 美['fɪfθw'iːl]
  • 半拖车接轮
  • fifth num.第五n.五分之一
  • sound n.声音;嘈杂声;音乐风格;曲调;印象;感觉;海峡;鱼鳔;探针v.听起来;感觉起来;发出声音;发音;探测深度;探询adj.有效的;合理的;可靠的;全面的;健康的;完好的;酣睡的;严厉的adv.酣畅地
名词 fifth wheel:
  1. someone or something that is unwanted and unneeded

  2. an extra car wheel and tire for a four-wheel vehicle

  3. a steering bearing that enables the front axle of a horse-drawn wagon to rotate