听声词典

dust

D 开头单词

音标发音

  • 英式音标 [dʌst]
  • 美式音标 [dʌst]
  • 国际音标 [dʌst]
  • 英式发音
  • 美式发音

基本解释

  • n. 灰尘；尘埃；尘土
  • vt. 撒；拂去灰尘
  • vi. 拂去灰尘；化为粉末
  • n. (Dust)人名；(德、俄)杜斯特

词源解说

  • 13世纪进入英语，直接源自古英语的dust，意为灰尘，尘土。

同根派生

  • adj性质的同根词
    dusty：落满灰尘的。
  • n性质的同根词
    duster：抹布，掸子；除尘器；打扫灰尘的人。
    dustiness：灰蒙蒙；多灰尘；尘污。

用法辨析

    n. (名词)

  • dust的基本意思指粉末状干土,即“尘土”“尘埃”。引申指“烟尘般的虚无”“尘土般的卑贱”“尘垢般的屈辱”。

    • v. (动词)

  • dust用作动词意思是“掸去灰尘”。后接粉状物质时,还可表示“把…撒在…上”。
  • dust用作及物动词时,接名词、代词作宾语。

英汉例句

    用作名词 (n.)

  • What a dust!
    好大的尘灰啊!

    • 用作动词 (v.)

    用作不及物动词: S+～(+A)

  • She dusts every day.
    她每天都擦拭灰尘。

    • 用作及物动词: S+～+ n./pron.

  • Dust your hat.
    拂去你帽子上的灰尘。

词组短语

    用作名词 (n.)

    动词+～

  • collect dust 积累灰尘
  • drive the dust 消除灰尘
  • gather dust 积累灰尘
  • kick up a dust 扬起灰尘
  • make a dust 扬起灰尘

英英字典

    剑桥英英字典

  • dry dirt in the form of powder that covers surfaces inside a building, or very small dry pieces of soil, sand, or other substances
  • (CLEAN) to use a cloth to remove dust from the surface of something
  • (COVER) to cover something with a light powder

    • 柯林斯英英字典

  • Dust is very small dry particles of earth or sand.
  • Dust is the very small pieces of dirt which you find inside buildings, for example, on furniture, floors, or lights.
  • Dust is a fine powder which consists of very small particles of a substance such as gold, wood, or coal.
  • When you dust something such as furniture, you remove dust from it, usually using a cloth.
  • If you dust something with a fine substance such as powder or if you dust a fine substance onto something, you cover it lightly with that substance.
  • If you say that something has bitten the dust, you are emphasizing that it no longer exists or that it has failed.
  • If you say that something will happen when the dust settles, you mean that a situation will be clearer after it has calmed down. If you let the dust settle before doing something, you let a situation calm down before you try to do anything else.
  • If you say that something is gathering dust, you mean that it has been left somewhere and nobody is using it or doing anything with it.

专业释义

    环境科学技术

  • 粉尘
  • 灰尘

    Research on heavy metal pollution of urban dust can be seen as a new breakthrough point for eco-environmental research of city.
    城市灰尘重金属污染的研究应该成为我国城市生态环境研究的一个新切入点。

  • 飘尘

    • 电子、通信与自动控制技术

  • 粉尘
  • 粉末

    In the process of laser cladding, there were noise caused by powder splash, arc light and dust, so it was necessary to pre-process images to get useful information.
    由于激光熔覆过程中存在粉末飞溅、弧光和烟尘等噪声干扰,在提取图像有效信息时对图像进行处理。

    能源科学技术

  • 粉尘

    The proposition of the paper comes from a NSFC project-"Contributing Factorof Cutting Dust and Its Control Strategies".
    本论文的论题选自国家自然科学基金项目“采掘机械截割粉尘的成因及控制方法的研究”。

    医药科学

  • 尘肺，尘病

    • 计算机科学技术

  • 灰尘

    dust;dust collection;performance testing.
    灰尘;灰尘回收;性能测试。

    农业科学

  • 粉剂

    • 生物学

  • 花粉
  • 尘埃
  • 粉尘;粉剂;花粉

    • 天文学

  • 尘埃

    X-rays are absorbed and scattered by dust grains when they travel through theinterstellar medium. The scattering within small angles results in an X-ray “halo”.
    当X射线穿越星际介质时会被星际尘埃颗粒吸收和散射,散射角度较小的光子就会在原来的X射线周围形成一个弥散的图像,这就是“晕”。

    体育

  • (投手)故意向(击球手)投球威胁

    • 土木建筑工程

  • 尘土

    • 地球科学

  • 浮尘
  • 尘
  • 尘埃
  • 漂尘
  • 飘尘