雄心

雄心 [xióng xīn]

1. ■ great ambition; lofty aspiration:

树立雄心 set up high aims and lofty aspirations; set one's sights high;

没有雄心 without ambition;

玛丽雄心很大， 竟想在四个月里学会用汉语流利地会话。 Mary is ambitious enough to aspire to conversational fluency in Chinese in four months.