Cách sử dụng
"Strike while the iron is hot" means to take advantage of an opportunity while it is available. Imagine a blacksmith working with iron, he needs to strike it while it is hot because once it cools down it becomes harder to shape. In a similar way, when you have a chance to do something, it's always best to do it right away before you lose the opportunity. So, it is important to act quickly and decisively when you have a good chance to succeed.