The substances secreted by these plants... 这些植物分泌的物质

151. Eeveryyear, we discover new species we had no idea existed
     每年我们都能发现一些未知的新物种
152. Insects, birds, mammals.
     昆虫 鸟类 哺乳动物
153. These forests provide the remedies that cure us.
     森林提供医治我们的药物
154. The substances secreted by these plants...
     这些植物分泌的物质
155. Can be recognized by our bodies.
     能被我们的身体识别
156. Our cells talk the same language.
     我们的细胞用同种语言交流
157. We are of the same family.
     我们同属一个家族

来自《家园 第二部分 Home Part2》第 154 行