11月 2025American Sign Language U...的市場佔有率分析

asl - american sign language: free, self-study sign language lessons including an asl dictionary, signing videos, a printable sign language alphabet chart (fingerspelling), deaf culture study materials, and resources to help you learn sign language. good for homeschool sign language classes, parents (baby signing), interpreters, and people who just want to learn fun asl phrases like hello, thank you, i love you, etc.