Cách sử dụng
'Hum' is a word that describes a continuous low sound that is made by people or machines. You can use this word to describe the sound of a machine, like a fan or a fridge, or the sound of someone singing or talking in a low voice. You can also 'hum' yourself, which means to make a sound with your mouth without speaking words. For example, you might hum a tune when you're bored or trying to remember a song. Overall, 'hum' is a versatile word that you can use in many different situations when describing a low, continuous sound.