adjective · clear and sonorous (referring to a person's voice or a sound)

少年发出了清朗的笑声。

adjective · clear and bright; unclouded (usually referring to the sky, moon, or atmosphere)

秋天的天空格外清朗。

adjective · clear and lively (referring to a narrative, writing style, or description)

他的文章风格清朗，深受读者喜爱。