The laboratory is a place where many science and engineering students studying abroad are stationed all the year round. Studying in the United States, especially in engineering or science, will give you more opportunities to work in the laboratory. Because most students in the United States will choose to study liberal arts or business at the postgraduate and doctoral levels, the classrooms and laboratories of engineering and science are like a small United Nations, with students in black, white and yellow skin colors and countries almost all over the world. Here, a person represents a country and all the customs of the motherland. Recently, the professor gave us a project to complete all the experiments and tests before the end of the year and issue a professional report, which is a good time to produce results and papers, so our project team almost brought together the elites of the whole profession, and Chharia and Tina and I formed a small core team of the project team.

Charia is a dark-skinned Indian. He speaks fluent English with a strong accent. He always smells of curry and strong body odor. At first, others hardly dared to approach him. But then everyone gradually discovered that Chharia was very professional and willing to share his experience with others. He was not only simple and enthusiastic, but also cooked a very delicious Indian dish. So it became a laboratory in less than half a semester? Red star? Everyone likes to communicate with him, and I often discuss problems with him, but sometimes sensitive political issues are involved, and the two of us will naturally be silent and tacit.

Tina is an African-American with a pair of very charming big eyes, and she is also a famous talented woman in this major. Born in a middle-class family, she often tells us about the hardships of her grandparents when they first came to the United States, and often tells us about the hard work experience of her parents when they were young. In her, there is no arrogance that Americans usually have. She is the first top student in the lab to leave at the latest. She is always meticulous and never misses a little data. But besides studying, she is as lively, cheerful and humorous as all American girls. She likes to show a little sexy clothes in a simple way, like to make eyebrows and like to shuttle among the people at the party.

I am an ordinary China boy. Like all American professors, I work hard and study hard, but my innovation ability is somewhat lacking. In the eyes of others, I have the typical characteristics of Asians. I am as polite and respectful as the Japanese, and like playing with foreign students in my country as the Koreans. At the same time, I am a little introverted, inarticulate but delicate inside. I don't like to complain about the unsatisfactory domestic life, talk about China's glorious past history, and of course, I don't like to hear all the remarks that denigrate the motherland. I don't whisper in class unscrupulously, and I don't argue with others because of childish problems. Because I know that what can make foreigners give a thumbs up is strength, hard work, achievements and quality, and each of our overseas students represents our motherland, and I will never discredit our country.