towboat
美['toʊˌboʊt] 英['təʊbəʊt]
n. 拖船；顶推船
英英释义
Noun- a powerful small boat designed to pull or push larger ships
例句
用作名词(n.)- For example, permits could be issued to travel through locks at specified times, and those permits could be traded among towboat captains.比如，可以通过许可证的发放将船闸通行限定在指定时间内，而且许可证也可以在拖船船长之间进行交易。
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