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来源:雅诚德英语网
The semiarid lands bordering the deserts exist in a delicate ecological balance and are limited in their potential to adjust to increased environmental pressures.
沙漠边缘的半干旱土地处于非常脆弱的生态平衡之中,而这些半干旱区域对于持续增加的环境压力的适应能力极其有限。