英文關鍵字
adolescent
ballpoint
black
business
businessman
closeup
concept
contract
copy
document
documents
education
exam
hand
handwriting
lawyer
learning
legal
lesson
letter
male
man
manager
note
notepad
notes
office
paper
pen
plan
school
schoolbook
sheet
sign
signature
signing
student
students
table
text
university
unknown
white
work
workplace
write
writing