the first letter of the Greek alphabet (A, α) 希腊字母表的第 1 个字母 - (also alpha version)
a version of a product, especially computer software, that is not yet ready for the public to buy or use, and that is tested by the company that is developing it （尤指计算机软件等新产品开发过程中的）α 版，预览版
Word Originvia Latin from Greek.