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【例】The distraught parents of the missing baby have made a public appeal for help.
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affront［əˈfrʌnt］n. / vt. 侮辱，冒犯
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【记】词根记忆：af + front（前面，脸面）→指着别人的脸→冒犯
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【例】The comments were an affront to his pride.
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secrete［siˈkriːt］vt. （指器官）分泌（某物质）；隐藏，藏匿
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【记】词根记忆：se + cre（生产） + te→产生体液→分泌
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【例】①This unknown substance is secreted from cells.
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②The bandits secreted all stolen jewels and money in the cave.
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grip［grip］n. 紧握，紧咬；支配，控制 vt. 握（咬，夹）牢；掌握，支配，控制
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【例】Officials of the World Food Program (WFP) said they are receiving information that famine has gripped parts of Central Afghanistan. （2000听力）
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disprove［disˈpruːv］vt. 证明…不能成立，反证
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【例】The author can disprove the idea that we sleep in order to rest our muscles.
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undertake［ˌʌndəˈteik］vt. 试图，企图；着手做，从事；承担；接受，同意；保证
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【例】①Christer Fuglesang, the first Swede to go into orbit, will undertake essential work on the space station.
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②Nobody can undertake that you will make a profit in such dealings.
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【用】undertake后面可以接to do不定式，是“答应做…”的意思。
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【派】undertaker（n. 殡葬业人员）
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vault［vɔːlt］n. 拱顶；地窖，地下室；（设于地下的）金库，保险库；撑竿跳 vt. （用手或杆支撑）跳跃，撑竿跳
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【例】①Sunlight streamed down from the high vault above Edward.
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②The hotel has a vault for us to keep valuables.
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③I found surprisedly that the thief vaulted over the wall and ran away.
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quail［kweil］n. 鹌鹑（肉）vi. 畏惧，颤抖
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【例】I will never quail at the fear of failure.
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【用】quail常与at搭配使用，表示“因…而颤抖”。
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