15.Our ancestors stumbled on this kind of controlled spoilage thousands of years ago, either by lucky accidents or out of serious desperation, and we humans have been intentionally spoiling food ever since.
我们的祖先几千年前无意发现了这种防止腐烂的方法,或许是幸运巧合,也或是被逼无奈,从此,人类就开始有意地 “放烂” 食物。
「《分钟地球》趣味科普(精选双语)」评价该例句:好评差评指正