adj.无疑的，确实的，千真万确的

There is no doubt that climate change is real and poses a significant threat to our planet.
毫无疑问，气候变化是真实的，对我们地球构成了严重威胁。
Undoubtedly, her talent and dedication made her the top choice for the lead role.
毫无疑问，她的才华和敬业使她成为主角的不二人选。
His victory in the marathon was undoubtedly an impressive feat.
他在马拉松比赛中的胜利无疑是一项令人赞叹的成就。
The fact that he finished the project ahead of schedule is undeniably remarkable.
他提前完成项目这一事实无疑是了不起的。
It's undoubted that technology has greatly improved our communication abilities.
毋庸置疑，科技极大地提升了我们的沟通能力。
Her unique perspective on life is an undoubtable asset to any team.
她对生活的独特视角对任何团队来说都是无可争议的优势。
The Mona Lisa is undoubtedly one of the most famous paintings in the world.
《蒙娜丽莎》无疑是世界上最著名的画作之一。
Undoubtedly, education plays a pivotal role in shaping a person's future.
教育无疑在塑造个人未来中起着关键作用。
His honesty and integrity are qualities that are undeniably attractive to his colleagues.
他的诚实和正直无疑是他同事非常吸引人的品质。
It's undeniably true that hard work often leads to success.
努力工作常常带来成功，这是无可否认的事实。