愁眉蹙额

Explanation: Because of worry and frown. 　　Source: Mao Dun, "after the first anniversary of the bloody" small businessmen to the mainland Shanghai 'banks unreasonable' and knitted brows frown. " 　　Examples: Wuchang in this respect many senior responsible officer, as suffering from neurasthenia-like, ~, tremble with fear. ★ Lee Six, such as "Six years of Change," Volume VI