colourless

adj.

1. 无色的；苍白的
   without colour or very pale
   1. a colourless liquid like water
      像水一样无色的液体
   2. colourless lips
      苍白的嘴唇
2. 无趣的；枯燥的
   not interesting
   1. a colourless personality
      苍白的个性

in AM, use 美国英语用 colorless


1. ADJ 无色的
   Something that is colourless has no colour at all.
   1. ...a colourless, almost odourless liquid with a sharp, sweetish taste.
      一种辛辣、略甜、无色也几乎无臭的液体
2. ADJ (通常指由于害怕、惊讶或生病而脸色)苍白的，无血色的
   If someone's face is colourless, it is very pale, usually because they are frightened, shocked, or ill.
   1. Her face was colourless, and she was shaking...
      她脸色苍白，并且浑身发抖。
   2. His complexion was colorless and he hadn't shaved.
      他面无血色，胡子也没刮。
3. ADJ-GRADED 无趣味的;枯燥的;平淡无奇的
   Colourless people or places are dull and uninteresting.
   1. ...the much more experienced but colourless General...
      阅历丰富得多但缺乏个性的将军
   2. We hurried through the colourless little town set on the fast-flowing Nyakchu.
      我们匆匆穿过湍急的那曲河畔这个毫无生气的小镇。

1. Her face was colourless, and she was shaking
   她脸色苍白，并且浑身发抖。
2. We hurried through the colourless little town set on the fast-flowing Nyakchu.
   我们匆匆穿过湍急的那曲河畔这个毫无生气的小镇。
3. Pure air is colourless and odourless.
   纯空气是无色无臭的。
4. Instead of the colourless air of the uplands the atmosphere down there was a deep blue.
   这儿和高地无色的空气不同，在山谷里，那儿的大气是一种深蓝色。
5. Colourless optical glass test methods& Density
   GB/T7962.20-1987无色光学玻璃测试方法密度测试方法
6. Colourless optical glass test methods& Linear thermal expansion coefficient and transformation temperature
   GB/T7962.16-1987无色光学玻璃测试方法线膨胀系数和转变温度测试方法
7. Life was confined to the narrow, colourless strip between factory and dormitory.
   生活被限制在工厂和宿舍这两点一线内，狭窄而又乏味。
8. This drink is a colourless liquid.
   这种饮料是一种无色液体。
9. Colourless optical glass test methods& Resistance to acid
   GB/T7962.14-1987无色光学玻璃测试方法耐酸稳定性测试方法
10. This allyl type resin is a highly transparent, colourless material.
    这种烯丙基型的树脂是一种高度透明的、无色材料。
11. Water is colourless in itself.
    水本质是无色的。
12. Ethyl Monoethanolamine is a colourless liquid, miscible with water, alcohol and ether.
    乙基乙醇胺是一种无色液体，与水，醇，醚混溶。
13. A solution is colourless if it has the appearance of water R or the solvent or is not more intensely coloured than reference solution B9.
    如果溶液的颜色不比水或溶剂或参比溶液B9深，那么溶液是无色的。
14. It is a colourless, odourless and tasteless gas, slightly heavier than air.
    它是一种无色、无溴、无味的气体，比空气稍重。
15. Carbon monoxide is a colourless, odourless, poisonous gas.
    一氧化碳是一种无色、无味、有毒的气体。
16. Some of them are colourless and tasteless, others are brown or even black and really bad smelling.
    有些石油碳氢化合物无色无味，而另一些则呈棕色甚至黑色，其气味也很难闻。
17. Poplar wood is colourless, odourless and tasteless, making it highly suitable for fruit boxes, medical tools, chopsticks, flooring and furniture and manufacturing pulp and paper.
    杨树无色、无臭、无味，非常适宜制作水果箱、医疗工具、筷子、地板和家具，以及用来制造纸浆和纸张。
18. Appearance: clear and colourless liquid.
    外观：无色透明液体。
19. It is a colourless, clear and transparent liquid.
    它是一种无色清澈及完全透明的液体。
20. Wanted to fly to you, leave this colourless sky and be with you in the glimmering sunshine.
    好想飞到你身边，离开这没有色彩的天空，与你沐浴在光芒四射的阳光中。
21. SO2 is a colourless gas with a sharp odour.
    二氧化硫是一种无色气体，带有刺鼻的气味。
22. He took down from the shelf a bottle of colourless liquid with a plain white label marked VICTORY GIN.
    他从厨架上拿了瓶无色液体，瓶身上一块纯白标签写着“胜利牌琴酒”。
23. The tube ended in a large bulb, where the gas condensed into a colourless liquid.
    管子的末端是一个大大的球茎状物，在那气体浓缩成无色液体。
24. A clear, colourless to pale yellow solution.
    澄明，无色到淡黄色液体。
25. Nitric acid: Inorganic compound, colourless, fuming, highly corrosive liquid, chemical formula HNO3.
    硝酸：一种无机化合物，无色、冒烟、高度腐蚀性的液体，化学式为HNO3。
26. Normally the probe remains colourless, but when cleaved, it releases a green fluorescent product that can be detected using a homemade box containing a light-emitting diode and a couple of filters.
    通常情况下，探针处于无色状态，但裂解时，它会释放出绿色荧光物质，可以被一个放有发光二极管和过滤片的自制盒检测到。
27. Colourless optical glass test methods& Refractive index and coefficient of dispersion
    GB/T7962.1-1987无色光学玻璃测试方法折射率和色散系数测试方法
28. CNG made up mostly of Methane, is lighter than air, odorless and colourless.
    由甲烷CNG大多，比空气轻，无嗅、无色。
29. The baby began to cry again, his face very pale and his lips colourless.
    那婴儿又哭了起来，他面色苍白，嘴唇发青。

adj

1. weak in color

   Synonym:    colorless

2. lacking in variety and interest
   1. a colorless and unimaginative person
   2. a colorless description of the parade

   Synonym:    colorless