求翻译：李涛是我校年轻的老教师，他被看作是老教师，是因为他教化学课已经有20年了。说他年轻，因为他今年还不过38岁。他长得较瘦。头上头发不多，灰白了。他戴着深度眼镜，牙齿又缺了两颗，所以他看上去比他实际年龄要大。他说，在公共汽车上常常有人给他让座。事实上，我曾看见他不止一次的给怀抱婴儿的妇女让过座。只要听一听他的化学课，那课又生动又有趣，你就会发现他真正的年龄是什么意思？

Tao old young teachers in my school, he is seen as old teacher, because chemistry class he taught for 20 years. That he was young, because he was this year, but 38-year-old. He looks leaner. Few head of hair, gray. He wore thick glasses, teeth missing two, so he looks to be larger than his actual ag

Li Tao was the youngest of my old teacher, he is seen as old teachers, because he had been teaching chemistry for 20 years. He said he's so young, because he was only 38 years old this year. He was a thin. Head on over to gray hair. He is wearing glasses, and the tooth depth and the two, so he looks

Li Tao is my school young senior teacher%

Li Tao is old and young teachers in our school, he was seen as old a teacher, because he has taught chemistry for 20 years. Said that in his youth, since he is only 38 years old. He is relatively thin. Hair on the head, gray. He wears thick glasses, teeth missing two stars, so he looks older than hi