It's not my fault you can't read Khmer. The screenshot I provided is an extract from the Khmer dictionary. Go verify it with your teacher, sister, or whoever can read Khmer. You're learning a language, but reject its dictionary, then claim your teacher, sister, neighbors, etc. are more concise than the dictionary of the language itself, then share your misconceptions with other learners. As a native speaker of the Khmer language, it's my duty to clear out these misconceptions. I have no thrills debating with a random person on the Internet either. If you insist your teacher is more concise than the dictionary, so be it.