例句與造句

1. It does n't pay to grow feed crops on such good soil .
   種飼料劃不來。
2. It makes use of the nutrients in sewage to feed crops and keeps them from polluting waterways
   它使污水的營養(yǎng)物質(zhì)回饋到農(nóng)作物，且使污水不致受到受污染的水道的影響。
3. It's difficult to find feed crop in a sentence. 用feed crop造句挺難的