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【例】The detectives have right to eavesdrop on telephone calls in the course of their investigations into serious crimes.
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【派】eavesdropper（n. 偷听者）
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swivel［ˈswivəl］v. （使）旋转，（使）转动 n. 转环，旋轴
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【例】When there was nowhere to go in that space for us, we swiveled in the other direction.
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extraneous［ekˈstreinjəs］adj. 非直接关联的，与正题无关的；外来的
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【例】The biologists consider the substance is extraneous after studying it.
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inescapable［ˌiniˈskeipəbl］adj. 无法逃避的，不可避免的
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【记】联想记忆：in（不） + escap(e)（逃避，避免） + able（可…的）→无法逃避的
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【例】All projections, of course, must be viewed with a healthy dose of skepticism. Nonetheless, the urge to make sense of what lies ahead is inescapable. （2001）
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versatility［ˌvəːsəˈtiliti］n. 多才多艺；多功能
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【记】词根记忆：vers（转） + atility→什么都玩得转→多才多艺
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【例】Jiang Qian and Guo Bingwen proposed a school running principle that advocated the balance between versatility and specialization, liberal arts and sciences. （2004）
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defoliate［ˌdiːˈfəulieit］vt. 毁掉（树木、花草的）叶，使落叶
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【记】词根记忆：de + foli（叶） + ate→使落叶
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【例】The worst year was 1990, when twelve million acres of forests were defoliated.
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prospective［prəˈspektiv］adj. 预期的，可能的，未来的
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【记】词根记忆：pro（向前） + spect（看） + ive→看向前方→未来的
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【例】Interview is frequently used by employers as a means to recruit prospective employees. （2005）
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obliterate［əˈblitəreit］vt. 擦掉，消去，去掉…的痕迹；忘掉，忘却
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【记】词根记忆：ob（逆） + liter（文字） + ate→使文字消失→擦掉
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【例】①The detective found the fingerprints which the murderer failed to obliterate.
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②Amnesia mercifully obliterated his memory of the accident.
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shred［ʃred］n. 碎片，细条；最少量，些微 vt. 撕碎，切碎
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【例】①not a shred(of) 一点也没有，毫无Not even a shred of the sails was left after the terrible storm.