The coming of age of the postwar baby boom and an entry of women into the male-dominated job market have limited the opportunities of teenagers who are already questioning the heavy personal sacrifices involved in climbing Japan’s rigid social ladder to good schools and jobs.
本句句式比较简单，主语是一个并列结构the coming of age of the postwar baby boom和an entry of women into the male-dominated job market，谓语动词是have limited，the opportunities of teenagers是宾语，后面是who引导的定语从句，从句中are questioning是谓语部分，the heavy personal sacrifices是宾语，后面是involved引导的分词结构做后置定语。
baby boom 婴儿潮
the heavy personal sacrifice 巨大的个人牺牲
social ladder 社会阶梯
If the tradition of ambition is to have vitality, it must be widely shared; and it especially must be highly regarded by people who are themselves admired, the educated not least among them.