They don't hesitate to open fire when confronted by police.

他们一旦遭遇警察就毫不犹豫地开火。

《柯林斯英汉双解大词典》

Don't hesitate to save the old versions.

不要犹豫保存旧版本。

youdao

Please don't hesitate to do this.

请不要犹豫。

youdao

Don't hesitate to save your old versions.

保存旧版本的时候不要犹豫。

麻省理工公开课 - 计算机科学及编程导论课程节选

Okay, same row, but don't hesitate so much this time.

还是这排,这次不要太犹豫了

耶鲁公开课 - 博弈论课程节选

In addition to the questions that you've prepared to ask your doctor, don't hesitate to ask questions any time you don't understand something.

CNN: Shingles

In addition to the questions that you've prepared to ask your doctor, don't hesitate to ask questions during your appointment anytime you don't understand something.

CNN: Peripheral artery disease (PAD)

In addition to the questions that you've prepared to ask your doctor, don't hesitate to ask questions during your appointment if you don't understand something.

CNN: Occupational asthma