英文關鍵字
vertical
backpack
sport
travel
knapsack
zipper
background
handle
rucksack
black
school
luggage
back
student
modern
holding
woman
fashion
holiday
strap
trip
education
object
carry
adventure
equipment
online
sale
home
purchase
receive
delivery
client
commerce
package
parcel
shopping
order
service
marketing
sell
business
product
owner