ambition
1.ambition（抱负、大志）后面接for，of和动名词或不定式都可以，如ambition for success，ambition of getting it和ambition to get it。
2.单用ambition（如ambition for success）或前面加上an，the或his （或your等）都可以，但ambition of...ing前总有the或his（或your等）。
3.In his youth he had the ambition of being a pianist和In his youth he had ambitions of being a pianist意思相同。注意第二句里ambitions前面没有the。
