Cách sử dụng
The word 'flatten' means to make something flat or smoother. It can be used in different situations. For example, if you are baking a cake and it rises too much in the middle, you can use a knife to flatten it out. Or, if you have a piece of paper that is crumpled, you can flatten it by using your hands or placing it under a heavy object. Additionally, we use the word 'flatten' when we talk about reducing the number of cases or deaths due to a disease, like COVID-19. Experts aim to "flatten the curve" by taking measures like wearing masks and social distancing to slow down the spread of the virus.