zài / xiǎnwēijìng / xià / biànxíngchóng / huì / shēnchū / wěizú / mànmàn / bāowéi / shíwù在显微镜下,变形虫会伸出伪足,慢慢包围食物。Under a microscope, an amoeba extends pseudopods and slowly surrounds its food.