Cách sử dụng
"Let alone" is a phrase used in English to emphasize that one thing is too difficult or unlikely, and another thing is even more difficult or unlikely. For example, if someone says "I can't run one mile without stopping, let alone three miles," it means that running three miles is even more difficult than running one mile, and therefore impossible for them. You can use "let alone" when you want to show that one thing is much harder than another thing, or to show that something is impossible because it is too difficult. It is often used in negative sentences, such as "I can't even remember my own phone number, let alone yours." Overall, "let alone" is a good phrase to use when you want to emphasize how hard something is by comparing it to something else that is already difficult.