unit 1 명사, 대명사, 형용사
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학습 레슨
unit 2 in, on
unit 3 with, of
unit 4 up, down
unit 5 into, out of
unit 6 at, as
unit 7 near, by
unit 8 around, for
unit 9 next to, between
unit 10 to, from
unit 11 before, after
unit 12 under, over