A lack of oxygen may inhibit brain development in the unborn child.

缺氧可能阻碍胎儿的大脑发育。

《牛津词典》

Because they lack oxygen, marsh sediments are high in sulfides that are toxic to most plants.

由于它们缺乏氧气，沼泽沉积物中的硫化物含量很高，而硫化物对大多数植物都有毒。

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The absence of oxygen on other planets means that those planets lack an ozone shield to protect life forms against UV radiation.

其他行星上没有氧气，这意味着这些行星缺乏保护生命体免受紫外线辐射的臭氧层。

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The court was told on Friday that Mr Macia had suffered extensive injuries, culminating in hypoxia - a lack of oxygen supply to the body - causing his death.

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Mariela's post-cooling MRI looked normal, which suggested she wouldn't have any long-term cognitive problems due to the lack of oxygen, according to Ms. Peloquin.

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During the same season as Bunting's army expedition, David Sharp, a 34-year-old British climber died of cold, exhaustion and lack of oxygen on his descent from the summit.

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