Cách sử dụng
"Stock up" means to buy more of something than you usually do, so that you have enough of it for a longer period of time. For example, if you know that you will not be able to go shopping for a while, you might go to the store and "stock up" on food, so that you have enough to last until your next trip. It can also be used in a broader sense, such as "stocking up" on supplies before a storm or other natural disaster. "Stocking up" can help you be prepared and avoid running out of something when you need it the most.