We discovered him to be an imposter.我们发现他是个冒名顶替的骗子。The two imposters tried to appear at their ease.两个骗子装出安然无事的样子。They consider him to be nothing but an imposter.他们认为他不过是个骗子而已。The imposter sponged 1000 pounds from his acquaintance.那个骗子从相识者那里骗取1000英镑。No imposter could deceive him;someone had put him up to all their tricks.任何骗子也骗不了他,有人已经把他们的一切圈套告诉了他。