翻译 grass fed beef,free-range eggs

翻译 grass fed beef,free-range eggs eat grass的翻译 Forgetful grass 翻译中文 Fed 翻译音标./frʌnt/ 翻译：have the beef tips The horses are fed on grass.与 The horses feed on grass.请问哪句是对的?为什么? sheep feeding on this kind of grass grow faster than ones on common grass.为什么用feeding而不用fed? As we all know,deer_on grass.Afeed B feeds C is feeding Dare fed beef The way Hong fed his family翻译 谁能翻译:Fed-Ex International The children are fully fed 句子翻译 grass grass grass the cattle _____ on the grassthe cattle____on the grass A.feed B.feeds C.are fed D.is fed为什么选A用主动形式? Be fed up with this的中文意思是什么?翻译Be fed up with this?