ㄅㄧㄢˋbiànㄙㄜˋˋㄖㄨㄥˊróng

  1. 臉色外在環境刺激導致失常

  2. 形容神色樣子戰國策·》:是日范雎無不變色易容。」

to change color and alter one's expression (idiom)​; to go white with fear, out of one's wits