As the name implies, there are three lines, the first line is the original text, and the second line is written below the original text to correspond to the meaning of modern Chinese. The third line is to combine the meanings of the words you wrote into modern Chinese sentences in order.
Such three lines correspond to translation. People in China like simplification, so it is called three-line translation. Copy the text in this way to deepen your memory. Easy to remember and understand.