doubtless
adv. 无疑地，肯定地
adj. 无疑的，肯定的
例句
He will doubtless try and persuade his colleagues to change their minds.
他大概会尽力说服他的同事们改变主意。
《柯林斯英汉双解大词典》
His direct, often abrasive approach will doubtless ruffle a few feathers.
他那直截了当、常常很粗鲁的方式无疑会激怒一些人。
Viruses and logic bombs can doubtless do great damage under some circumstances.
病毒以及逻辑炸弹无疑会在某些情况下造成巨大损失。
