他热爱动物，并且对动物无所不知。
他说话的口气会达到这样一种效果：不管是什么议题，没有人想质询他，好像他无所不知。
He was able to say things in a way that made people not want to question him on anything, like he knew it all.
马丁对旧金山不熟，对市场街以南更是一无所知。因此他不知道自己已被领到了什么地方。
Martin was little acquainted in San Francisco, and not at all south of Market; so he had no idea of where he was being led.
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