1. And by the time he discovers that the morsel is not of the genus stone, but a digestible bonbon, half his allotted span of life is over. 等到他发现这口食物不是一块石头,而是可以消化的糖果时,他的大半生已过去了。
2. That discussion took place 25 years ago, the span usually allotted to a single generation. 这样的对话发生于25年前,算是跨越了一代人。