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- While part of this land is later used for highly productive tree crop agriculture (oil palm, rubber, cocoa), about 200,000 ha end up every year as anthropic savanna, dominated by the noxious grass Imperata cylindrica (alang alang). 其中部分土壤后来开发为生产力较高的经济树种农用地（油棕榈、橡胶、可可），而每年大约20万公顷则变成受人为活动影响的热带稀树草原，主要由毒草白茅（又名印度白茅）组成。
- It may take many years to assess the effects of fertilizers on tree crops. 可能需要许多年才能评价肥料对果树的效果。
- Very different fertilizer treatments are needed for these two tropical tree crops. 这两种热带作物需要完全不同的施肥方法。
- In many plants, including most tree crops, nitrate nitrogen does not usually occur in the leaves. 在一些植物中，包括绝大多数的木本作物，硝态氮并非经常存在于叶片中。
- In Haiti, for example, coffee and other tree crops bind the soil on hillsides better than field crops do. 例如，在海地，咖啡和其他树上作物将土壤固定在山边，比田间作物固定得好得多。
- The pomegranate (P.granatum L.),a species belonging to the family Punicaceae,is one of rising berry tree crops grown worldwide. 石榴属石榴科石榴属植物,为近年来我国发展迅速的小杂果类树种之一。
- Rice is the chief crop in most southern provinces. 稻子是大多数南方省份的主要作物。
- The grain crop has gone down this year. 今年的粮食作物产量下降了。
- We have had the biggest wheat crop ever this year. 今年我们的小麦收获量是有史以来最好的。
- Half the fruit crop froze out in the sudden cold. 一半的水果作物在突如其来的寒流中被冻死。
- Rice is the chief crop in this ares. 稻子是这一地区的主要作物。
- As the car hit the tree he was snot out. 汽车扭在村上，他被猛地摔了出来。
- We had a poor crop of raspberries this year. 今年我们的悬钩子歉收。
- The farmer paid 3 laborers to gather the crop. 农场主雇佣3名工人收割庄稼。
- The bird sang high and clearly in the tree. 鸟儿在树上清脆地高歌。
- Part of every crop is saved for seed. 每一种庄稼都留一部分作种子。
- His shot beat the goalkeeper neck and crop. 守门员根本挡不住他射门。
- He fell neck and crop off the horse. 他从马上倒栽葱地摔了下来。
- The annular markings on a tree indicate its age. 树的环形纹理显示其年龄。
- The car hit the tree with a sickening crash. 那辆汽车撞在树上发出让人难受的撞击声。
