重点讲解：
1. throw away 舍弃；屏弃；
Broody couples might want to throw away any dreams of a boy for him and a girl for her.
打算生小孩的夫妇也许要舍弃一男一女两个小孩的梦想了AjuprU0DHstnlZtMm30=。
2. start out 起初是；
People set out with a lot of ambition andenthusiasm, and start out with a big goal.
人们满载雄心和热情，开始时为自己制定了伟大的目标%R9q-=.bK&。
3. in one's infancy 初期；初创阶段；
Computing science was still in its infancy.
计算科学仍然处于初期阶段XP&6Raho2znAy4t)。
4. hint at 暗示；示意；
A character's appearance may hint at her past.
一名角色的形象可能暗示其过去的经历ZaGI,4z36G*wao。