none the wiser的意思

汉语翻译

例句：

1. I'm afraid I'm none the wiser for your explanation.很抱歉，我听了你的解释还是不明白。
2. Even after listening to his explanation I'm none the wiser.我即便听了他的解释，仍然不明白。
3. After hearing her talk on computers I'm afraid I'm none the wiser.我听了她关於计算机的讲话之後似乎毫无收获。
4. He is none the wiser because he has read many books.他虽然读了不少书，可是并未因此而聪明些。