oar propelled lifeboat是什么意思，oar propelled lifeboat的翻译，oar propelled lifeboat音标、读音、用法和例句

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oar propelled lifeboat是什么意思，oar propelled lifeboat的翻译，oar propelled lifeboat音标、读音、用法和例句_94生活常识网有道词典