Hello! My name is [Your Name]. I am a primary school student, and I love learning new things every day. In my free time, I enjoy reading books, playing with my friends, and watching cartoons. English is one of my favorite subjects because it helps me communicate with people from all over the world.

My dream is to become an explorer when I grow up so that I can discover amazing places and learn about different cultures. I believe that being curious and open-minded will help me achieve my goals. At school, I work hard to improve my grades and always try my best in everything I do.

Here’s my translation:

你好！我的名字是[你的名字]。我是一名小学生，每天我都喜欢学习新东西。在空闲的时候，我喜欢读书、和朋友们玩耍以及看动画片。英语是我最喜欢的科目之一，因为它能帮助我和世界各地的人交流。

我的梦想是长大后成为一名探险家，这样我就能发现令人惊叹的地方并了解不同的文化。我相信好奇和开放的心态会帮助我实现目标。在学校里，我努力提高我的成绩，并且在每件事上都尽自己最大的努力。

通过这样的方式表达自我介绍，既简洁又充满童趣，同时避免了过于复杂的词汇或句式，适合小学生使用。希望这个版本能够满足您的需求！