真面目

真面目 [zhēn miàn mù]

1. ■ one's true self; true features; true colours:

露出真面目 show one's true features;

认清其真面目 see sb. in his true colours;

不识庐山真真面目， 只缘身在此山中。 I see not the true face of Lushan mountain because I am in the mountain.