A course refers to a specialized study program. It usually takes place on campus but can be delivered online. Courses are popular for people who want to get specific knowledge in one subject.
The United States of America is a large country in North America, often referred to as the "USA", the "US", the "United States", "America", or simply "the States". American colleges are funded by "tuition" charged to the student, which is often quite expensive, very commonly reaching into the tens of thousands of dollars per year.
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