An expert said water level in Aral Sea has dropped by 18 meters so far and salt level has increased from 12 grams per liter to 60 grams per liter是什么意思_An expert said water level in Aral Sea has dropped by 18 meters so far and salt level has increased from 12 grams per liter to 60 grams per liter在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句