Cách sử dụng
The word 'strengthen' means to make something stronger or more powerful. You can use 'strengthen' in different contexts. For example, you can strengthen your muscles by doing exercises, strengthen a relationship by spending more time with a person, or strengthen your knowledge by studying hard. In English, 'strengthen' is usually used as a verb, but it can also be used as an adjective, such as 'strengthened' to describe something that has become stronger. Overall, 'strengthen' is a useful word to describe the process of making something stronger in various contexts.