tug, tugboat 隐藏摘要 
拖轮
trawler  拖网渔船
tug, tugboat 拖轮
…………………………………………
http://www.9iwm.com/english/arc/vocabulary_flch/z161f1603161.htm - 基于75个网页
拖輪
trawler 拖網漁船
tug, tugboat 拖輪
vessel 船
http://sl.iciba.hk/viewthread-32-442301-1.shtml - 基于5个网页
  相关词条
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large tug