There are about 150 dolphins living in the upper Mekong River, up from only 90 before a 2006 ban on net fishing in the eastern provinces of Kratie and Stung Treng.是什么意思_There are about 150 dolphins living in the upper Mekong River, up from only 90 before a 2006 ban on net fishing in the eastern provinces of Kratie and Stung Treng.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句