到一定时候，这些事情将不再发生，除了大象或许会像马一样帮助人类的大陆运输和林地开垦。
In time, there will be little of such things, other than perhaps elephants assisting humans much like horses for transportation or the clearing of the land.
国会最近的农业法案本应通过削减农业补贴，加重林地保护计划，减少美国农民开垦种植的刺激。
Congress's recent farm bill was supposed to dull the incentives for American farmers to plant on marginal lands by slashing farm subsidies and beefing up conservation programmes.
耕地增加的主要来源是林地转变以及未利用土地的开垦，二者分别占到28.13%和27.50%。
The main increase of cultivated land was from forest land and non-use land, the rates were 28.13% and 27.50%.
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