英文關鍵字
brunette
camcorder
camera
casual
caucasian
class
college
dark
dslr
educate
education
educational
flipchart
hair
indoors
inside
institute
jacket
job
lection
lecture
male
man
people
person
professional
recording
school
speak
speaking
student
study
suit
talk
talking
teach
teacher
teaching
tripod
university
work
young