300 tons of Peruvian mangoes were kept from entering France.300吨秘鲁芒果被禁止进入法国。...the high, fertile valleys of the Peruvian Andes.秘鲁安第斯山脉富饶肥沃、海拔甚高的山谷...the peasants in the Peruvian highlands...秘鲁高地的农民Couples are breaking up...
Water soluble hydroxypropyl � � cyclodextrin was converted to acetonyl hydroxypropyl � � cyclodextrin via selective oxidation.通过选择性氧化,将水溶性优良的羟丙基β环糊精转化为丙酮基羟丙基β环糊精....