Photo Gallery: Plate Tectonics An airplane casts a shadow over the red waters of Lake Natron in Tanzania, part of the East African Rift Valley.是什么意思_Photo Gallery: Plate Tectonics An airplane casts a shadow over the red waters of Lake Natron in Tanzania, part of the East African Rift Valley.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句