Parallel sentences are a common rhetorical device that uses the same topic or phrase repeatedly to enhance the effect of the expression. The use of parallel sentences in a bubble blowing essay can make the reader feel the emotions and artistic conception in the text more vividly. The specific benefits can be found in the following: 1. Enhancing the expression effect: Parallel sentences can repeatedly use the same topic or phrase to produce a strong contrast effect, making the text more vivid and fascinating. 2. Enhancing the momentum: Using the same structure and intonation can create a strong momentum that makes the text more appealing and rhythmic. 3. emphasize the main point: Parallel sentences can put many similar or similar elements together to highlight their importance and similarities to help readers better understand the main content of the text. 4. Increase literary grace: Parallel sentences can make the text more literary, produce rhythm and rhythm similar to poetry, and increase the beauty and artistic value of the text. Therefore, the use of parallel sentences in a bubble blowing essay can enhance the effect of expression, emphasize the key points, and increase literary talent, so that readers can feel the emotions and artistic conception in the text more vividly.