英文關鍵字
academic
assignment
books
bulb
buy
buyer
caucasian
college
consumer
consumerism
customer
deadline
department
difficult
discipline
education
efficiency
energy
exam
examination
hard
high
indoors
knowledge
lack
learning
library
notepad
overloaded
overworked
person
preparation
prepare
research
school
science
sitting
student
study
studying
table
teaching
teen
teenage
teenager
textbook
university
young