左右开门示意
 
 
左开门
Turn left to pen the door
左开门-逆时针开启
Turn left to open the door counterclockwise to open
左开门-顺时针开启
Turn left to open the door-clockwise to pen
 
 
 
 
 
右开门
Turn right to pen the door
右开门-顺时针开启
Turn right to open the door-clockwise to pen
右开门-逆时针开启
Turn right to open the door counterclockwise to open