Cách sử dụng
The expression "in reserve" means to keep something for later use, instead of using it now. For example, if you have extra money that you don't need to spend right away, you might put it "in reserve" in a savings account for later. This expression can be used in different contexts, such as in sports when a player is on the bench and ready to come into the game if needed. It can also be used in businesses where a company might keep extra products or resources "in reserve" in case they run out of the things they need to operate.