Completely sealed inside the transparent ball were four tiny brine shrimp, a feathery mass of meadowgreen algae draped on a twig of coral, and microbes in the invisible millions.

• 被彻彻底底地封在这个透明球体中的，是四条小盐水虾，一团挂在一根小珊瑚枝上的像羽毛一样的草绿色的水藻，以及数以百万计的看不见的微生物。