Conservationists had hitherto been struggling to preserve the waters around Hawaii using the National Marine Sanctuaries Act.The battle had been expected to continue for at least another year.是什么意思_Conservationists had hitherto been struggling to preserve the waters around Hawaii using the National Marine Sanctuaries Act.The battle had been expected to continue for at least another year.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句