红、赭、粉等颜色来自三叠纪干燥期缓慢形成的沉积物，在足够长的时间里，侵蚀与氧化作用创造出这种奇迹。
The reds, ochres and pinks hail from the much slower deposition during the Triassic's dryer periods, when erosion and oxidation had time to work their magic.
另外中国也是世界上二氧化硫排放最多的国家，由此产生的酸雨正在侵蚀韩国和日本的森林面积，甚至日本渔民也受到了中国环境污染问题引起的影响：大型海蜇在漂游到日本北部之前会先在中国沿海产卵，这破坏了大麻哈鱼和黄鱼的捕捉，渔网和轮桨也因此受损。
The country is also the world's biggest emitter of sulphur dioxide. The resulting acid rain is damaging Korean and Japanese forests.
大多数水含有一些二氧化碳，使得水显弱酸性，能够侵蚀石灰岩中的碳酸钙。
Most water contains some carbon dioxide making it a weak acid that can eat away at the calcium carbonate in limestone.
应用推荐