Cách sử dụng
The expression "trial and error" means to try something repeatedly until you find what works best. It is often used when you are trying to solve a problem or figure out how something works. For example, if you are learning to ride a bike, you might have to try different techniques until you figure out the best way to balance yourself. In other words, you learn by trying different things and making mistakes until you finally find the right solution. So, when you come across a situation where you are not sure what to do, you can use the expression "trial and error" to remind yourself that it's okay to experiment and make mistakes in order to learn and improve.