久久国产欧美日韩精品,日韩国产精品久久久久久亚洲,99视频精品全部免费免费,91精品国产综合久久走光

河流轉(zhuǎn)向東流時(shí)河道大幅度變寬。The river widens considerably as it begins to turn east.這些蝸牛體寬不超過1厘米。The snails are no larger than one centimetre across.尼羅河在此處變寬，從兩塊花崗巖巨石間穿過。Here the Nile broadens out between the huge granite boulders....