Definition: used to emphasize that something is true Level: C1
压力无疑加剧了她的病情。
Stress has ___undoubtedly contributed to her illness.
教育子女无疑是每位父母的责任。
It is ___undoubtedly every parent's duty to educate their children.
她无疑是这份工作的最佳人选。
She is ___undoubtedly the best candidate for the job.
