She says early automobile tires were made with guayule.
，
的汽车轮胎就是拿银胶菊的乳胶做成的。
She says early automobile tires were made with guayule.
，的汽车轮胎就是拿银胶菊的乳胶做成的。
Desert plants, however, tend to be slow growing—guayule takes two years to mature.
然而，沙漠植物往往生长缓慢——银胶菊要两年才能成熟。
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