They like water because it helps to keep their skin moist.

它们喜欢水, 因为这样可以保持皮肤湿润。

Frogs live near wet places to keep their skin moist.

青蛙靠近湿地居住以保持表皮湿润。

Unlike fish, amphibians can live on land and in the water, and have smooth, moist skin.

但和鱼类不一样的是，它们能生活在陆地和水中，并有滑顺、湿润的皮肤。

Amphibians such as this poison dart frog also have lungs like mammals but can get some oxygen through their moist, permeable skin as well.

像这只毒箭蛙这样的两栖动物也有像哺乳动物一样的肺，但它们也可以通过湿润、可渗透的皮肤获得一些氧气。

The china of the whites was now veined with red. It was like looking at two blackcurrants poached in blood. The rest of the wide face was yellowish except where a thick black stubble covered the moist skin.

白人的瓷器现在染上了红色的纹路。这就像看着两颗被鲜血煮熟的黑加仑子。除了厚厚的黑色胡茬覆盖着潮湿的皮肤外，宽脸的其余部分都是淡黄色的。