英文關鍵字
adolescent
ballpoint
black
business
businessman
classmate
closeup
contract
copy
document
documents
education
exam
guy
hand
handwriting
holding
knowledge
lawyer
learning
legal
lesson
letter
male
man
notes
office
page
paper
pen
person
plan
school
schoolbook
sheet
sign
signature
signing
student
students
table
text
unknown
view
white
workplace
write
writing