sheltered roadstead是什么意思 sheltered roadstead在线中文翻译

sheltered roadstead是什么意思，sheltered roadstead在线翻译，sheltered roadstead中文意思，sheltered roadstead的中文翻译，sheltered roadstead发音，sheltered roadstead例句，sheltered roadstead词组短语，sheltered roadstead怎么翻译，单词sheltered roadstead的意思