①He hesitated whether he should make a last attempt to save the man.
该不该再作最后一次努力来救这个人，他犹豫不决。
②(牛津P959)Please do not hesitate to contact me if you have any queries.如果有疑问就请尽管和我联系。
③She replied without hesitation.她毫不犹豫地作了回答。
④He’s still hesitating about joining/over whether to join the expedition.
他对是否去参加探险仍拿不定主意。
