The test can be performed in utero.

这一测试可在子宫内进行。

《牛津词典》

Our genetic inheritance, our quality of life in utero, education, class, career, lifestyle, status, levels of physical, mental and social activity are just some of the main influences.

影响衰老的主要因素有：遗传基因，胚胎发育，教育，阶级属性，事业，生活方式，身份地位，物理和精神状况，社会活动等。

youdao

They may have kept your mother’s immune system from attacking you in utero, for instance.

比如说当你还是胎儿时它们能避免你遭受来自妈妈的免疫系统的攻击。

youdao

If homosexuality is caused by unusual in-utero testosterone exposure (a plausible hypothesis), then the system that controls body odour may change in related and detectable ways.

ECONOMIST: Support for the idea of human sex pheromones

More recently, an elevation in leukemia diagnosed in the first year of life was seen in children born in 1986 and 1987, just after the accident at Chernobyl, representing a latency period of less than two years between in-utero exposure and diagnosis.

FORBES: French System For Cleaning Fukushima Water Blamed For Leukemia, Polluted Beaches In Europe

It is a finding that begs questions for scientists like Perera about how these chemicals might be influencing the baby - whose ability to fend off toxic chemicals is considerably less than adults - while it develops in utero.

CNN: Toxic chemicals finding their way into the womb