A river rising in the Cascade Range of west-central Oregon and flowing about 402 km (250 mi) generally north to the Columbia River near The Dalles.是什么意思_A river rising in the Cascade Range of west-central Oregon and flowing about 402 km (250 mi) generally north to the Columbia River near The Dalles.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句