劍橋詞典the cooling of the water in the central and eastern Pacific Ocean that happens every few years and that affects the weather in many places 拉尼娜現(xiàn)象(太平洋東部和中部海水變冷的現(xiàn)象,每隔幾年發(fā)生,對很多地區(qū)氣候產(chǎn)生影響) 返回 la Ni?a