Cách sử dụng
The word 'insertion' means the act of putting something into something else (usually a hole or opening). For example, when you insert a key into a lock, you are putting the key inside the lock. When a doctor inserts a needle into your arm, they are putting the needle into your arm. The word 'insertion' can also refer to putting text or an object into a document, such as inserting a picture into a PowerPoint presentation.