沙子都是黄色的吗?不,世界各地由于地质成分、气候变化以及生物种类不同,沙粒的形状和颜色截然不同。普普通通的沙子有啥好看?其实,这取决于你会不会看。在显微镜下,平时看似亳不起眼的小沙粒聚拢在一起,构成了一个你从未见过的、绚丽多彩的世界。 Is the sand yellow? No, the shape and color of the sand are quite different around the world due to the different geological components, climatic changes and different biological species. What’s good looking ordinary sand? In fact, it depends on you will not see. Under the microscope, usually seemingly unobtrusive little grit gathered together to form a gorgeous world you have never seen before.