I don't want to study abroad, but I want to stay in the United States for half a year, mainly to learn languages. How to apply for going abroad in this situation?

Applying for short-term language study has nothing to do with whether you are a student or not and whether you have graduated. Just like applying for short-term language study, it has nothing to do with your current academic qualifications. But as the upstairs said, the visa is not easy. If you are studying abroad, you get a visa of F 1, so you can't work outside the school legally. Unless you work illegally, there are fewer job opportunities on campus.

What other applications for immigration and job opportunities are inconsistent with your desire to learn a language?

Maybe when you graduate and work in a foreign company, people will send you to work in the United States.

Otherwise, find a wife/husband and let the other person study abroad. If you accompany the F2 visa, it is not a student visa legally.

In addition to the short-term language learning I mentioned first, there is another one that is more practical. You can ask your current university if there is an exchange program between your school and an American school, and you can apply for exchange students to study in an American university for one semester.

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If you study in the language center of an American university, the monthly tuition fee is between $800 and $2,000, and if you live and board, it is about $700 per month. Depending on where you are going to study, big cities are often more expensive.

If it is an exchange, the cost is not necessarily. Some school programs are free, and scholarships are for pocket money; Some tuition fees are free, and they take care of themselves; Do everything yourself. Please consult your own school. Tuition in American schools ranges from $4,000 to $4,000 per semester. Kilometers are cheap and private ones are expensive.