为保持土壤肥力,农民搞作物轮作.Farmers rotate their crops so that the soil will remain fertile.农作物轮作有助于防止水土流失.Crop rotation helps prevent soil erosion.他连续5年在同一块地里种植不同的作物，研究人员称之为轮作。He grew a different crop on the same field five years i...
Soil compaction may limit horizontal root extension.土壤的紧密度能限制水平根的扩展.The design and application effect of the horizontal twinroler machine for coal briquetting have been introduced.介绍了用于压制型煤的卧式对辊压球机的设计和应用效果.This hillock i...
I'll be back before you can say blueberry pie.你蓝莓馅饼几个字还没说完我就会回来了.Every inn had a picturesque name — the Black Locust Inn, the Blueberry Inn.每个旅馆都有一个别致的名字，如“洋槐树旅馆”、“蓝莓旅馆”。Which one would you like. strawberry sauce or...
The alarm clock awoke me on time.闹钟按时把我闹醒了。At midnight he awoke and listened to the radio for a few minutes...他半夜醒来，听了一会儿收音机。And the ill favoured and leanfleshed kine did eat up and fat kine. So Pharaoh awoke.4这又丑陋又乾瘦的七只...