Please read the following article and find out what role El Ni?o and La Ni?a play.
请阅读以下文章，看一看厄尔尼诺和拉尼娜现象所起的作用。
La Ni? A begins when waters become cooler than normal in the eastern Pacific Ocean near the equator.
当赤道附近东太平洋海域中的海水温度异常降低就会发生拉尼娜现象。
In the United States, the latest la ni? A pushed moisture away from the south, causing severe droughts. Texas has suffered billions of dollars in agricultural losses.
在美国，最近的一次拉尼娜现象使南方水汽减弱，造成了严重的干旱，使德克萨斯州遭受了数十亿美元的农业损失。
Because of the el Ni? O and La Ni? A effects, and all those other factors, figuring out what might happen to hurricanes in a warmer world is, well, complicated.
由于厄尔尼诺和拉尼娜现象，以及所有其它的因素，要研究在全球变暖的情况下飓风的是很复杂的。
The La-Ni oxides synthesized by solid state reaction at room temperature shows a high photo-catalytic activity in degrading reactive dyes.
采用室温固相反应法制备的镧镍氧化物对活性染料具有较好的光催化效果。
La Ni? A also makes weather conditions worse but rarely bullies as harshly as el Ni? O.
拉尼娜现象同样会使天气状况变糟，但很少象厄尔尼诺现象那样横行霸道。
La Ni? A also makes weather conditions worse but rarely bullies as harshly as el Ni? O.
拉尼娜现象同样会使天气状况变糟，但很少象厄尔尼诺现象那样横行霸道。
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