| 单词 | pigboat |
| 释义 | pigboat (once / 787955 pages) n WORD FAMILY pigboat: pigboats n a submersible warship usually armed with torpedoes Syn|Hypo|Hyper U-boat, sub, submarine attack submarine a military submarine designed and armed to attack enemy shipping auxiliary research submarinea submarine for research purposes fleet ballistic missile submarinea submarine carrying ballistic missiles nautilus, nuclear submarine, nuclear-powered submarinea submarine that is propelled by nuclear power submersible, submersible warship a warship designed to operate under water |
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