<單字複習>
已選單詞
adjacent
back
bottom
central
close
cosmic
curved
diagonal
distant
ecological
environmental
external
far
front
geographical
global
higher
horizontal
inner
internal
international
left
local
lower
lower
middle
national
nearby
outer
parallel
peripheral
perpendicular
rear
regional
remote
right
sideways
straight
surrounding
top
universal
upper
vertical
worldwide
