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help的现在完成时为：helped...
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“工具”的近义词/同义词：东西, 器材, 器械, 用具。...
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admissible的反义词有：inadmissible, inadmissible。adj.admissible的反义词（许可的;可接受的）：inadmissible。admissible的反义词（其他释义）：inadmissible。...
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dacryocystorhinostenosis的音标：dacryocystorhinostenosis的英式发音音标为：[deɪkri:əsɪstə'hɪnɒsten]dacryocystorhinostenosis的美式发音音标为：[deɪkriəsɪstə'hɪnɒsten]...
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cisalpine的音标：cisalpine的英式发音音标为：[sɪs'ælpaɪn]cisalpine的美式发音音标为：[sɪs'ælpaɪn]...
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投石机: 古代投掷物体之发射器,用作发射长箭或重型球状物.Ballista: Ancient missile launcher designed to hurl long arrows or heavy Balls.最大之投石机可相当准确地发射27公斤重物到约450 公尺 处的目标.The largest could accurately hurl 60 - lb ( 27 - kg ) weights up to about 500 ...
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Processes which can lead to cathodic protection, phosphating, pickling, and electroplating.阴极保护, 磷化反应, 酸洗和电镀都会造成氢脆变.Several test methods of performances of the cathodic electrophoresis paints are introduced.介绍了阴极电泳漆的几种性能...
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summons的音标：summons的英式发音音标为：['sʌmənz]summons的美式发音音标为：['sʌmənz]...
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calligraphist的音标：calligraphist的英式发音音标为：[kə'lɪgrəfɪst]calligraphist的美式发音音标为：[kə'lɪgrəfɪst]...
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Local administrations grouped in a joint salvage effort.当地各管理部门联合起来协力挽救.Psychoactive substances are commonly grouped toare stimulants , depressants, or hallucinogens.刺激神经类物质通常分为兴奋剂 、 静剂和幻觉剂.The targets of these foreign (...
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他让他妹妹奏曼陀林作伴奏He had his sister playing the mandolin [ 9 mAndE 5 lin as accompaniment.她演奏曼陀林非常出色.She plays the mandolin superlativelywell.他15日)调整了旧曼陀林,起到了几个音符.He 15 tuned up the old mandolin and a few notes....
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anthraniloyl的音标：anthraniloyl的英式发音音标为：[ænθrə'naɪlɔɪl]anthraniloyl的美式发音音标为：[ænθrə'naɪlɔɪl]...
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We shall have to refine on our methods of advertising.我们得进一步改进做广告的方法.The purpose of oil refinery is to refine crude petroleum.炼油厂的主要工作是提炼原油.Modern medical techniques refine on those of the past.现代医疗技术比过去的医疗技术要优越....