to shoot for the stars 胸怀大志（非正式）

英文释义
To have high expectations and ambitions.

例句

My younger sister, who is studying for an MBA, always likes to shoot for the stars, and so she intends someday to become the president of a major company.

我的妹妹正在攻读MBA学位，总是喜欢胸怀大志，她打算将来成为一家大公司的总裁。