指没有远大的志向lacking lofty ambitions

• 16岁的高飞被父母描述成胸无大志、沉默寡言。

  Sixteen-year-old Gao Fei is described by his parents as lacking ambition and taciturn.

• 有的党员信念淡薄，胸无大志，不求上进。

  Some Party members have weak convictions, lack ambition, and do not strive to make progress.