三种用法：
1、vt.否定/否认， ①deny sth； ②deny doing sth = deny having done sth 例句： He denied the signature. 他否认这是他的签名。
He denied knowing anything about their plans. = He denied having known anything about their plans. 他否认知悉他们的计划。
2、拒绝给予 refuse to give， ①deny *** sth = deny sth to *** He denied the money to his son. = He denied his sone the money. 他拒绝给儿子钱。
3、vt.抛弃/背弃 He has denied his party and his principles. 他背弃了他的党和他的原则。
