You can say, "The professor 'hit the nail on the head' when she said, that we cannot demand respect, respect must be earned and not given freely." What does it mean? Watch here. For more videos - go to www.youtube.com/KhmerSpecialEnglish or www.khmer.voanews.com/maniandmori. To contact Mani & Mori - write to them at email@example.com.