Certainly! Here's a one-minute English self-introduction that is over 300 words:

Hello everyone, my name is [Your Name], and I am thrilled to have the opportunity to introduce myself to you today. I was born and raised in [Your Hometown/Country], where I developed a deep appreciation for diverse cultures and languages from an early age. Growing up, I always had a passion for learning new things, whether it was exploring the intricacies of science or immersing myself in literature. This curiosity has been a guiding force throughout my life, leading me to pursue opportunities that challenge and inspire me.

I recently graduated with a degree in [Your Major] from [Your University], where I honed my skills in [specific skill or field]. During my time there, I was fortunate enough to participate in several projects that allowed me to apply theoretical knowledge to real-world problems. For instance, I worked on a team project focused on [briefly describe your project], which taught me the value of collaboration and perseverance. These experiences not only strengthened my technical abilities but also reinforced my belief in the power of teamwork.

In addition to academics, I enjoy staying active through sports such as [your sport] and have even volunteered as a coach for local youth teams. This role taught me leadership and communication skills, as well as the importance of giving back to the community. Outside of work and sports, I love traveling and have visited several countries, each offering unique perspectives that continue to shape who I am today. My travels have broadened my horizons and fueled my desire to connect with people from all walks of life.

Looking ahead, I am eager to bring my enthusiasm and dedication to this new environment. I believe that every interaction presents an opportunity to learn and grow, and I am excited about the prospect of contributing to our collective success. Thank you for taking the time to listen to my introduction—I look forward to getting to know all of you better!

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Feel free to customize this template by replacing placeholders like "[Your Name]", "[Your Hometown/Country]", and "[Your Major]" with your personal details!