傍晚天红，牧羊人高兴；早晨天红，牧羊人当心。

Red sky at night, shepherd's delight; red sky in the morning, shepherd's warning.

youdao

傍晚天红，牧羊人高兴；早晨天红，牧羊人当心。

Red sky at night, shepherd's delight; red sky in the morning, shepherd's warning.

youdao