开朗kāilǎng 1.地方开阔,光线充足{(of a place) spacious and with plenty of light}: 豁然～。{become bright open all of a sudden; suddenly see the light} 2.(思想、心胸、性格等)乐观、畅快,不阴郁低沉{(of idea, mind, character, etc.) sanguine; optimistic}: 胸怀～,精神焕发。{be optimistic and cheerful}