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研究了聚氯乙烯 - 吡啶树脂催化乙酰苯胺的N - 烃基化作用,反应条件温和,产品收率令人满意.This paper studied the catalytic N - alkylation of acetanilide with polyvinyl chloride - pyridine resin.方法以3-甲氧基苯硫酚和对甲氧基 - 苯乙酮为原料经溴化、烃基化、环合重排排制得目标产物.Methods: The target comp...
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Pace off four metres, and then stop.用步子量出4米, 然后停下来.Has phenomenal pace off the ball.无论带球与否他都有超乎寻常的速度.I pace off the wooden bridge and found it was about 100 feet long.我步测出那座木桥长约100英尺....
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guillotine的音标：guillotine的英式发音音标为：['gɪləti:n]guillotine的美式发音音标为：['ɡɪləˌtin, 'ɡiə-]...
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“内讧”的近义词/同义词：内耗, 内乱, 内哄, 内争, 内争, 内乱。...
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“守场员”的英语可以翻译为：[棒、垒球] fielder ...
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“美女”的拼音为：měi nǚ...
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真刻螨属...
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Welland gave an exasperated sigh and turned back.韦兰十分烦恼地叹了口气，转过身去。Colin Welland's screenplay is faithful to the novel.科林·韦兰的电影剧本忠实于原小说。Welland made a pretence of writing a note in his pad.韦兰假装在便笺薄上做笔记。...
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vt.引出，探出，诱出（回答等）...
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v.发芽（gemmate的第三人称单数形式）...
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brewery的复数形式为：breweries...
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subjects的音标：subjects的英式发音音标为：['sʌbdʒɪkts]subjects的美式发音音标为：['sʌbdʒɪkts]...
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pry的一般过去时为：pried...
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他们或许会感到疲惫，虽然外表看似没事，但可能很容易发火。They may feel tired and though outwardly calm, can be irritable.我从未见过他生气或者发火。I've never seen him get cross or lose his temper.他并不是爱发火或爱起急什么的，他只是有点困惑。He wasn't irritable or snappy or ...