U-boat
noun /ˈjuː bəʊt/
  /ˈjuː bəʊt/
 - a German submarine (= a ship that can travel underwater)Topics Transport by waterc2Word Originfrom German U-boot, abbreviation of Unterseeboot ‘undersea boat’.
| 单词 | U-boat | 
| 释义 | U-boatnoun /ˈjuː bəʊt/  /ˈjuː bəʊt/ 
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