adj.沉默寡言，寡言少语，不愿与人交谈，有保留

She was a reticent person, preferring to keep her thoughts and feelings to herself.
她是个内向的人，喜欢把想法和感情藏在心里。
The professor was reticent about sharing his groundbreaking research findings with the public.
教授对于分享他的开创性研究成果对公众保持了谨慎的态度。
He was reticent to discuss his past experiences in the military.
他对于谈论他在军队的经历显得很保守。
Her reticence about revealing her identity made it difficult for us to confirm her story.
她对公开身份的犹豫不决使我们难以核实她的故事。
The shy student was reticent to participate in class discussions.
那个害羞的学生不愿参与课堂讨论。
Despite repeated invitations, she remained reticent to join our social gathering.
尽管一再邀请，她仍然不愿参加我们的社交活动。
The scientist was reticent to attribute any success solely to himself.
科学家不愿意把所有的成功都归功于自己。
The politician's reticence on controversial issues reflects a desire to maintain a neutral stance.
这位政治家在争议性问题上的沉默反映出他想保持中立的态度。
In the face of criticism, he maintained a reticent silence, choosing not to defend himself.
面对批评，他选择了沉默，没有为自己辩护。
His reticence to express emotions made him appear distant and aloof.
他对表达情感的保留使他看起来冷漠疏远。