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1·Pure air is colourless and odourless.

纯空气是无色无臭的。《新英汉大辞典》

2·Her face was colourless, and she was shaking.

她脸色苍白，全身发抖。《柯林斯英汉双解大词典》

3·Water is colourless in itself.

水本质是无色的。

4·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。

5·Appearance: clear and colourless liquid.

外观：无色透明液体。

6·Are you a man with colourless character?

你是一个呆板的人吗？

7·Roughly speaking: objects are colourless.

一般来说，对象是没有颜色的。

8·Her own language is not entirely colourless.

她的语言也不全都是文雅的。

9·It is a colourless liquid with a burning taste.

这是有强烈味道的无色液体。

10·It is a colourless, clear and transparent liquid.

它是一种无色清澈及完全透明的液体。

无色

1·Pure air is colourless and odourless.

纯空气是无色无臭的。《新英汉大辞典》

2·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。

3·The odourless, colourless gas is deadly if there is high or prolonged exposure.

这种无色无味的气体如果长期大量地泄露，将是杀人不眨眼的恶魔。

4·Displacement usually occurs in such a way that a colourless and abstract expression of the dream - thought is exchanged for one that is pictorial and concrete.

置换的结果通常使梦念中一个无色、抽像的概念改变为图画或者是具体的形像。

5·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。