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Some scientists have a hunch that a pregnant woman's diet and her exposure to various chemicals turn on some fetal genes and turn off others.

有些科学家有预感，认为孕妇的饮食和她接触的各种化学物质会开启一些胎儿基因，而关闭其他基因。

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Fetal lie is another important part of a baby's presentation.

胎位是婴儿表现的另一个重要部分。

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Citizens first saw King, who had been drinking that evening, as he lay in a fetal position on a street next to his car.

FORBES: Rodney King: His Race, His Plea, His Death

The use of either two-dimensional (2D) or three-dimensional (3D) ultrasound to only view the fetus, obtain a picture of the fetus or determine the fetal gender without a medical indication is inappropriate and contrary to responsible medical practice.

FORBES: Virginia's Pre-Abortion Ultrasound Law Medically Unsound-Violates Guidelines of American College Of Obstetricians And Gynecologists

They share a fetal, larval quality, and that characterisation is not just conceptual, but a reflection of a new paradigm of the automobile that's still struggling to be born, as a design historian Phil Patton put it.

ECONOMIST: Car design