Problems
来自Big Physics
Safin（讨论 | 贡献）2022年4月28日 (四) 10:20的版本 （建立内容为“Category:etymology == google == [https://www.google.com.hk/search?q=problems+etymology&newwindow=1&hl=en ref] late Middle English (originally denoting a ridd…”的新页面）
late Middle English (originally denoting a riddle or a question for academic discussion): from Old French probleme, via Latin from Greek problēma, from proballein ‘put forth’, from pro ‘before’ + ballein ‘to throw’.
