['envələʊp]['ɑnvəˌloʊp]
  • n. 信封;壳层;封袋
  • 记忆方法

    谐音记忆法
    谐音:安慰老婆
    联想:写封信安慰老婆
    词源词根法
    来自envelop,包围,围住。en-向内+-velop-包,裹住+-e
    联想记忆法
    enve反过来就是万一,lope分别代指漏和破。 联想: 传递信息尽量别写信,万一信封漏了、破了你的秘密不就被别人知道了吗。 所以,evenlope,信封。
      noun(名词)
      1. 信封

    双解例句

    noun(名词)
    1. 信封

    小知识

    An envelope is something that envelops, or wraps around. It usually refers to the thing you stick a stamp on and snail mail.

    In the early 1700s, envelope, the noun for “wrapper,” evolved from the French enveloppe, meaning “to envelop.” Envelope is always a noun, unlike the verb envelop which means “to wrap, cloak.” Synonyms for envelope range from casing and enclosure to pouch and sheath. Virginia Woolf said, “Life is a luminous halo, a semi-transparent envelope surrounding us from the beginning.” She ditched hers by walking into a river with her pockets full of rocks.

    实用短语

    1. red envelope

      红包,送红包,大红包,发红包

    2. nuclear envelope

    3. circumstellar envelope

    4. work envelope

      工作行程,工作包封

    5. building envelope

      围护结构,建筑物外壳,建筑围护结构,建筑外壳

    6. envelope curve

    7. envelope detector

    8. flight envelope

      飞行包络线,飞行状态范围

    9. envelope antigen

      包膜抗原,包被抗原,囊膜抗原,膜抗原

    常用短语

    1. flight envelope

      飞行包线

    2. nuclear envelope

      核膜;核被膜

    3. envelope curve

      包络曲线;包迹

    4. failure envelope

      断裂点轨迹;破坏包络线

    5. push the envelope

      挑战极限;接近甚至超越安全限度;越过底线

    6. glass envelope

      玻璃封装;玻壳

    单词用法

    词汇延伸
    covering覆盖物packet小袋cover封面wrapper(饺子)皮wrapping包装材料blanket毛毯casing套shell壳album唱片集layer层gasbag气囊
    重要短语
    flight envelope飞行包线
    nuclear envelope核膜;核被膜
    envelope curve包络曲线;包迹
    failure envelope断裂点轨迹;破坏包络线

    词根词缀

    词根: velop

    =to wrap up 表示”包,包裹”

    • adj.

      developable 可发展的;可开发的

      develop[v.发展, 发达, 发扬]+able能……的→adj.可发展的;可开发的

      developmental 发展的

      development[n.发展]+al……的→adj.发展的

    • n.

      envelope 信封;封套

      envelop[n.&v.包封, 遮盖, 包围 n.信封]+e→n.信封;封套

      developer 开发者

      develop[v.发展, 发达, 发扬]+er人→n.开发者

      development 发展

      develop[v.发展, 发达, 发扬]+ment表名词→n.发展

      envelop 信封

      en使……+velop包,包裹→包封, 遮盖

    • n.&v.

      envelop 包封, 遮盖, 包围

      en使……+velop包,包裹→包封, 遮盖

    • v.

      develop 发展, 发达, 发扬

      de分开+velop包,包裹→把包着的打开→发展, 发达

    同义词

    blanket  /  covering  /  shell  /  album  /  packet  /  layer

    同根词

    词根:envelop

    n.

    envelop信封;包裹

    enveloped折叠条

    enveloping包络

    envelopment包;包封,封套;封皮

    v.

    enveloped包围(envelop的过去分词)

    enveloping包封;遮盖(envelop的ing形式)

    vt.

    envelop包围;包封;遮盖