As highlighted by the Cambridge Dictionary the idiomatic preposition that is used with well-versed is "in". Also according to the evidence ... ... <看更多>

今天分享一個履歷好用詞彙：versed versed 意思是「對…很熟練；精通」。 比方： I am well versed in Photoshop, Illustrator and Dreamweaver. ... <看更多>

Hello, Learn English phrase - Well versed. I have also explained the meaning of- Well versed with example sentences in their proper context. ... <看更多>