Definition: used to emphasize that something is true Level: B2
她的努力工作无疑促成了她的成功。
Her hard work has ___undoubtedly contributed to her success.
他最新的书无疑是他迄今为止最好的作品。
His latest book is ___undoubtedly his best work yet.
互联网无疑改变了我们的沟通方式。
The internet has ___undoubtedly changed the way we communicate.
