21世纪基础技能教学培训网(GCFlearnfree) 是一个完全免费的教学项目，帮助世界各地数以百万计的用户提供工作中基本技能，如Microsoft Office和电子邮件、阅读、数学、日常生活技能、工作和事业指导等，包含了125科目教程，采用文章、视频、互动媒体的模式教学。

　　For more than a decade, the GCFLearnFreeprogram has helped millions around the world learn the essential skills they need to live and work in the 21st century. From Microsoft Office and email to reading, math, and more, GCFLearnFree.org offers 125 tutorials, including more than 1,100 lessons, videos, and interactives, completely free.

　　If you’re willing to learn, we’re ready to teach.

　　View one tutorial. Complete an entire class. We believe there's freedom in the ability to learn what you want, when you want, regardless of income or circumstances. We offer 125 tutorials on the subjects you need to continue your education—or get it started.

　　Learn anywhere, anytime.

　　Our classroom is open 24 hours a day and serves people from around the world. Join the 18 million people from all walks of life who have come to the site to learn the essential skills they need to live and work in the 21st century. All you need is an Internet connection.

　　Always here. Always growing.

　　Online education isn’t new. We’ve been here for more than 10 years, and today we offer more tutorials than ever. When you take a class with us, you know it’s up to date—and that it will be available later when you need to review.