yí / gè / jiàn / kāng / de / shēng / tài / quān / xū / yào / zhí / wù / dòng / wù / hé / wēi / shēng / wù / zhī / jiān / bǎo / chí / píng / héng一个健康的生态圈需要植物、动物和微生物之间保持平衡。A healthy ecosystem requires a balance among plants, animals, and microorganisms.