Not just any tree, but Douglas fir, the emperor of the forest, a species that grows 200 feet tall and blankets much of the Pacific Northwest.是什么意思_Not just any tree, but Douglas fir, the emperor of the forest, a species that grows 200 feet tall and blankets much of the Pacific Northwest.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句