英文關鍵字
answer
background
brainstorming
caucasian
child
choosing
clever
cognitive
concentration
confuse
confusion
contemplation
creativity
difficult
doubt
expression
female
girl
grimace
guilty
idea
indoor
isolated
pensive
people
person
planning
ponder
pondering
portrait
query
question
quizzical
serious
solution
strategy
think
thinking
thoughtful
thoughts
uncertain
unsure
visionary
woman
wonder
wondering
young