英文關鍵字
aid
bunch
crowd
descend
descending
different
direction
down
escalator
going
group
indoor
industries
industry
lot
mall
many
movement
moving
people
shop
shopping
transportation
英文關鍵字
aid
bunch
crowd
descend
descending
different
direction
down
escalator
going
group
indoor
industries
industry
lot
mall
many
movement
moving
people
shop
shopping
transportation