Cách sử dụng
The word 'upwind' is used to describe the direction from which the wind is blowing. For example, if the wind is blowing from the north and you are facing south, the north direction is upwind. It is important to know the direction of the wind while flying a kite, sailing a boat, or during any outdoor activity that involves wind. Being upwind means that the wind is blowing towards you and you are likely to smell, hear or feel anything that is in the direction of the wind.