| 单词 | U-boat |
| 释义 | U-boat (ybōt′) n. A submarine of the German navy. [Translation of German U-Boot, short for Unterseeboot : unter, under (from Middle High German under, from Old High German untar; see dher- in the Appendix of Indo-European roots) + See, sea (from Middle High German sē, from Old High German) + Boot, boat.] |
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