It was a trip to the US in 1933, during the Great Depression, where he witnessed poverty and starvation that changed his goals. 让他改变志向的,是1933大萧条期间的一次美国之行,他当时亲眼目睹了贫困和饥饿。
Not until the Great Depression of 1929 did widespread starvation threaten the American people. 一直到一九二九年大萧条来临,广泛的饥饿才威胁到美国人民。
In so doing, the future food shortages will not manifest in the physical to such a great degree that mass starvation and killing one another over food would manifest. 这么做,未来的食物短缺将不在物理层中显现成如此巨大的程度,使得大量饥荒或彼此为食物而残杀来显现。