英文關鍵字
call
care
caucasian
child
class
computer
coronavirus
desk
distance
education
elearning
elementary
finger
follow
girl
gymnastics
home
internet
junior
kid
laptop
learn
lecture
lesson
light
little
lockdown
online
primary
quarantine
rest
room
school
schoolchildren
sit
smart
student
study
table
teacher
training
video
watch