Cách sử dụng
The word 'efficacy' means the ability to do something or produce a desired result. It is often used in settings where people want to evaluate how well something works or how effective it is. For example, if someone is talking about a medicine, they might say that its efficacy has been proven in clinical trials. In other words, they are saying that the medicine has been shown to work well in treating a particular condition. Overall, efficacy is a way to measure how successful something is in achieving a specific goal or outcome.