I took the escalator to the second floor.
A moving staircase that carries people between different floors of a building.
His promotion was an escalator to success.
A device or system that increases or improves something, often used in a metaphorical sense.
ด้วยพจนานุกรมภาพและแฟลชการ์ดที่ทรงพลังฟรี
