backslidden什么意思解释？

backslidden的音标：backslidden的英式发音音标为：[bæks'lɪdden]backslidden的美式发音音标为：[bæks'lɪdden]...

Mr. Lee was once active in the church, but he has backslidden.李先生一度在教会中很活跃, 但是他已故态复萌....