那些素面朝天的容颜那些洗尽铅华的城市
[nèi xiē sù miàn cháo tiān de róng yán nèi xiē xĭ jĭn qiān huá de chéng shì]
This phrase reflects two concepts; faces without makeup meeting the sky naturally, symbolizing purity or simplicity; and cities stripped of glamour, hinting at returning to basics or appreciating authenticity after experiencing worldly luxuries.