中文解释：形容人虽然第一印象不好，但其实是个好人。有些人表面上看起来不行，但做某事很在行。可以翻译成“人不可貌相，真人不露相”。

英文解释：Describing someone who gives a bad first impression but is actually a good person. Someone who doesn't appear to be competent, yet is extremely capable at what he/she does.

例句：
Dr. Bruce is a spaz, but he's one of the best doctors I know. You wouldn't know it by looking at him...good lenses, bad frames.

布鲁斯医生有点怪，但他是我认识的最好的医生。从外表是看不出来的，人不可貌相。