布劳格在墨西哥装载了35卡车的麦种并把它们向北送往了洛杉矶。
Borlaug loaded 35 trucks in Mexico and sent them north to Los Angeles .
布劳格运用了自然的变异；而他的后继者们人为地创造着变异。
Borlaug had used natural mutants ; soon his successors were bringing on mutations artificially .
布劳格不甘愿如此悲观。
Borlaug refused to be so pessimistic .
布劳格