Cách sử dụng
The expression "under the counter" is used to describe something that is sold secretly or illegally, usually without proper authorization or licenses. It can also refer to something that is kept hidden or concealed, such as goods that are not supposed to be sold publicly. For example, alcohol or cigarettes sold without a license might be sold "under the counter," or a business might keep certain products "under the counter" in order to avoid attention from authorities. This expression is often used in situations involving illegal or shady business practices, and is generally not considered to be a positive thing.