1、For now, the giant apple snail's presence in Europe is limited to the Ebro Delta.
目前，巨型蘋(píng)果蝸牛在歐洲僅分布于埃布羅三角洲。

2、For now, the giant apple snail's foothold in Europe is limited to the Ebro Delta.
到目前為止，巨型蘋(píng)果蝸牛在歐洲僅存在于埃布羅河三角洲。

3、Hogan and a wels catfish take a swim in Spain's Ebro River, 2009.
2009年，國(guó)家地理研究員澤布·霍根和一位捕魚(yú)向?qū)?/a>在西班牙的埃布羅河托著一條135磅重、83英寸長(zhǎng)的六須巨鲇（學(xué)名：Silurusglanis）。

4、The same phenomenon occurred when wels catfish was introduced into the Ebro River in Spain.
同樣的現(xiàn)象在六須鯰魚(yú)引入西班牙埃布羅河時(shí)也發(fā)生了。