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