| 释义 |
所以然所以然[suǒ yǐ rán]1.■the reason why; the whys and wherefores:知其然而不知其所以然know that sth. is so but not why it is so; know what is done but not why it is done; know what happened, but not its whys and wherefores;他说不出个所以然来。He could not explain why it was so. |