A thick layer of mud can't disguise this animal's scent. 厚厚的泥浆掩盖不住它的气味
With erosion, the fine layer of humus, 数千年形成的腐殖质图层
The fertile layer to which all life on land is linked. 地球上所有的生命都与这富饶的土层有关
I don't want to lose my protective layer. 我可不想被洗掉保护皮
Monica: Well, the meat's only every third layer. Maybe you could scrape. 每三层才铺一层肉, 也许你可以把它们刮下来。
To get what they seek the prospecting elephants must first blow away the covering layer of silt. 要找到想要的东西 大象首先要驱走覆盖着的沙土
Every layer seems to beat to a different tune. 森林的每一层都有不同的曲调
The saltwater layer is extremely low in oxygen 咸水层的含氧量很低