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concrete
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具体的,有形的,混凝土的;混凝土
adj./u.n.
pension
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养老金,退休金
n.
rectangle
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长方形;长方形的
n.adj.
outline
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轮廓;描绘轮廓
n.vt.
trend
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倾向,趋势,时尚
n.
merely
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只,仅仅
adv.
chew
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咀嚼
v.
bounce
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(使)反弹,跳跃
v.
theoretical
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理论的
adj.
greedy
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贪婪的
adj.
prevent
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阻止,防止
vt.
unconscious
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不省人事的,无意识的
adj.
civil
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国内的,市民的,民事的,公民的
adj.
acquaintance
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相熟,熟人
n.
patent
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专利权
n.
scratch
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抓,划破;划痕
v.n.