Just found something interesting in China city’s metro service. You can choose a carriage that’s cooler/warmer

Just found something interesting in China city’s metro service. You can choose a carriage that’s cooler/warmer 剛剛在中國城市的地鐵服務中發現了一些有趣的東西。 您可以選擇涼爽或較溫暖的車廂