解析下dare的用法

及物动词 vt. 1.敢; 敢做 He didn't dare to speak to her.他不敢和她说话。I dare you to jump over the stream.我谅你不敢跳过这条小河。2.激（某人做某事）；问（某人）有没有胆量（做某事）；谅（某人）没胆量（做某事） I dared him, but he didn't.我向他挑战, 可是他不敢应战。 3.敢尝试；敢做；敢冒…的险，敢冒(风险) The explorers dared the dangers of the ice north.探险者们敢于冒北方冰雪严寒的危险。1.敢, 竟敢 I daren't ask her for a rise.我不敢向她要求加薪。I don't know whether he dare try.我不知道他是否敢试一试。She wanted the money badly, but she daren't ask for it.她急需用钱, 但却不敢要。He dare not mention the subject again.他不敢再提起那个话题。We're so late I daren't look at my watch.我们太迟了, 我连手表都不敢看一眼。I daren't think how much it's going to cost.我没敢想这得花多少钱。He dared not show that he was pleased.他不敢表示自己觉得高兴。Dare you tell him the news?你敢告诉他这个消息吗?I show him my new blouse but I dared not tell him how much it cost.我给他看了我的新衬衫, 但没敢告诉他花了多少钱买的。名词 n. 1.激将；挑战 不及物动词 vi. 1.敢，敢于，大胆，无畏于，有足够的勇气(或胆量) You wouldn't dare!你不敢!