In order to build it as a stable and efficient agroecosystem, we must start with animal husbandry subsystem, that is to sey, we must improve feed conversion rates of animals.是什么意思_In order to build it as a stable and efficient agroecosystem, we must start with animal husbandry subsystem, that is to sey, we must improve feed conversion rates of animals.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句