Cách sử dụng
The word "precautionary" is used to describe actions that are taken to avoid or prevent harm or danger. For example, when you wear a helmet while riding a bike, it's a precautionary measure to protect your head from injury. Similarly, when people wear face masks to protect themselves from getting sick, it's also a precautionary measure. So, the word "precautionary" is used when you want to convey that you're taking extra care to avoid any potential harm or danger.