Example is more efficatious precept. - --- Samuel Johnson.身教重于言教. ---- 塞缪尔.约翰逊.Example is more efficatious than precept.身教重于言教....

efficatious的音标：efficatious的英式发音音标为：[ɪfɪ'keɪʃəs]efficatious的美式发音音标为：[ɪfɪ'keɪʃəs]...

灵验（指疗效）...