A drop from a pond, viewed through a microscope, swarms with tiny organisms.
A drop from a pond, viewed through a microscope, swarms with tiny organisms.
透过显微镜可以察看到一滴池水有一大群微小生物体在游动。
A drop from a pond, viewed through a microscope, swarms with tiny organisms.
透过显微镜可以察看到一滴池水有一大群微小生物体在游动。