My friend is a very tall boy. He has black hair, but his eyes are brown. He's cool, outgoing and friendly.
He has a lot of friends. They get along very well. Every weekend they get together to play.
They are always very happy. Because he has many hobbies, such as sports, listening to music and reading books, he is a good boy.
Federer Federer is one of my best friends. She is very thin and short, but no one likes to pick him because he is the smartest student in the school and has a high reputation. He likes to help people when they are in trouble, which is why we are the best.
Marcy thinks I should learn from him.
Albert Einstein, the world's top ten outstanding physicists, founder, synthesizer and founder of modern physics, as well as a famous thinker and philosopher, Einstein graduated from the Federal Institute of technology in Zurich, Switzerland, with a doctor of philosophy from Switzerland, University of Zurich, Berne patent office, Prague University of technology, Germany, He was elected to the Prussian Academy of Sciences. He was persecuted by the Nazi regime and immigrated to the United States. He was a professor of the Princeton Institute of advanced studies.
There is a well-known saying in "entering American nationality" that "everything is relative", but Einstein's theory is a kind of philosophical cliche In this method, scientific measurement is relative, and the time and space of subjective feeling depends on the observer himself.