儿童需要无微不至的爱护。Children need to be cherished.狗摇尾巴以报答人们的爱护.A dog reacts to kindness by wagging its tail.爱护公物,人人有责.It is everybody's duty to take good care of public property....
Heat was obtained from decomposing manures and hot air flues.靠肥料分解和烟道为植物提供热量.Farmers enrich the soil with organic and inorganic manures.农民用有机肥料和无机肥料来提高土壤的肥力.Six organic manures were used to apply to celery and romaine le...