面帶病容 one's face assumes a sickly countenance.; one's face shows sickly countenance
面帶愁容 with a sad air; look blue; one's face expressed melancholy.; one's face shows a sad expression.; one's features have a melancholy cast.; wear an air of sadness; wear a worried look
面帶愁色 one's face shows a sad expression.; wearing an anxious expression; with a troubled countenance