笑逐颜开

Explanation: By follow; Yan face, face; open unfold. Smile to the face stretch. Described as smiling and very happy to look. 　　Usage: The main predicate; as predicate, attributive, complement; with a compliment 　　Source: Ming Shinai "Water Margin Biography" Article 42 back to Sung Chiang met, Xicongtianxiang, wreathed in smiles. " 　　Examples: They heard the good news, one by one ~. Thesaurus:  be selfless and fearless, Such as sitting vernal breezes, Such as Mu vernal breezes, Ancient said on this, unctuosity, a smooth tongue, laughing and talking happily, slick, Xutouhuanao Antonym Group:   finish writing an aricle or drawing a painting very quickly, humorlessness, everything going smoothly, everything is just fine; all is well with the world, sit pretty, Be in a desperate situation, toss, Everything goes well, feel uneasy even when eating and sleeping, jitter, Are lapel to sit rigidly (as on ceremonious occasions or in the presence of, Look serious and severe, antithesis dumbness, Credulousness Pajau, the devil knows many things because he is old, an old horse which knows the way, (as) easy as ABC, as facile as traveling along a familiar road in light carriage, artificial outward saintliness, Road Manners neatly arranged, Quietly Wuyu