Facing society and one's environment with an emotionless, cool face like a "human billboard" is like withdrawing oneself from reality and living in a vacuum, looking at one's surroundings but not seeing them.
一個面無表情的「人形看板」冷漠的面對大眾、面對周遭環境，彷彿抽離了現實，進入了真空的情境，對環境現狀只能「視而不見」。