1. Microscopic examination of a cell's chromosomes can reveal the sex of the fetus. 用显微镜检查细胞染色体可以查出胎儿的性别。
2. Phytoplankton are microscopic plants that grow in the ocean. 浮游植物是生长在海里的微小植物。
3. Even today, microscopic meteorites continually bombard Earth, falling on both land and sea. 即使是现在，微小的陨石仍在不断地撞击地球，然后落到陆地上和大海中。
4. In one study conducted at an American university, researchers collected microscopic germs from footwear. 在美国一所大学进行的一项研究中，研究人员从鞋子上收集了微小的细菌。
5. These microscopic layers of deposits containing bacteria are known as biofilms and they are found on most surfaces and objects. 这些含有细菌的微小沉积层被称为生物膜，它们存在于大多数表面和物体上。
