In Australia just recently, many crops are under attack by so many locusts that the farmlands are ending up barren wastelands. 最近在澳大利亚，许多庄稼在很多蝗虫的侵袭下使农田变成了贫瘠的荒地。
The government regreened the wastelands by imbursing fruit trees planting and succeeded in improving the ecological environment. 政府通过资助种植果树以使荒地重新变绿，成功地改变了生态环境。
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