vision
visual
view
review
revise
device
devise
obvious
provide
survey
video
prospect
perspective
aspect
respect
respective
special
especially
specialist
expert
specialize
species
suspect
optical
optimistic
option
optional
audience
tone
dictate
dictation
indicate
condition
edition
editor
tradition
infant
injure
responsible
都是些四级英语词汇,麻烦了~