天然草皮资源丰富，具有开发利用价值。

The abundant turf resource was worth exploiting.

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虽然人工草皮的维持花费较少，但其植入花销近似于天然草皮培植的两倍。

Fake grass costs nearly twice as much as sod to install, though it costs less to maintain.

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几十年来，由于天然草皮昂贵而艰难的维护，经理人们一直苦于寻找一种替代品而不得。

For decades managers have looked for alternatives to natural grass, which is costly and difficult to maintain.

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