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同义词： odorless inodorous
以上来源于: WordNet
ADJ An odourless substance has no smell. 无气味的
...an odourless insect repellent.
...一种无味驱虫剂。
The gases are odourless.
这些气体没有气味。
scentless , unscented
词根： odour
odour 气味；声誉
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《柯林斯英汉双解大词典》
Researchers have still to decide whether smell is one sense or two—one responding to odours properly and the other registering odourless chemicals in the air.
研究者们还需要判断嗅觉到底是一种还是两种感觉，一种感觉回应气味本身，另一种感觉记录空气中无味的化学成分。
Carbon monoxide is a colourless, odourless gas produced by the burning of fuels, including gas, oil, wood and coal.
BBC: Fire service sees rise in carbon monoxide poisoning cases
Over a period of 10 years, she lived with low levels of Carbon Monoxide, and the colourless odourless gas slowly poisoned her.
BBC: Gas body urges appliance checks in Cornwall
"The thing about carbon monoxide poisoning is that the carbon monoxide itself is odourless, colourless, tasteless so it's a silent killer, " he said.
BBC: Neil McFerran (l) and Aaron Davidson (r)
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