tug·boat 
(tŭgbōt′)
(tŭgbōt′)n.
A small powerful boat designed for towing or pushing larger vessels. Also called towboat.
tugboat
| 单词 | tugboat |
| 释义 | tug·boat (tŭgbōt′)n. A small powerful boat designed for towing or pushing larger vessels. Also called towboat. tugboat |
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