ADJ You can use undoubted to emphasize that something exists or is true. 无疑的 [强调]
The event was an undoubted success.
这次活动是一个无可置疑的成功。
...a man of your undoubted ability.
…一个拥有你这样无可置疑的能力的人。
undoubtedly ADV 无疑地
Undoubtedly, political and economic factors have played their part.
毫无疑问,政治和经济因素起了作用。
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