See your eye doctor within the first trimester of pregnancy.

在怀孕的前三个月要去看眼科医生。

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Chemotherapy is not given at M. D. Anderson during the first trimester of pregnancy, when vital organs are still forming and the risk of birth defects is highest.

安德森医学博士在第一个三个月孕期内没有给孕妇化疗，这时期是胎儿的重要器官形成期，出生缺陷的风险是最高的。

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Instances where PTU is recommended over MMI include the initiation of therapy in the first trimester of pregnancy or in the setting of life-threatening thyrotoxicosis or thyroid storm.

大量的例证表明PTU比MMI更多的推荐用于作为妊娠头三个月的初始治疗或危及生命的甲状腺毒症或甲亢危象的治疗。

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To nab an under-2 spot at Hansen Place in Brooklyn's Fort Greene, parents need to apply when the mother is in the first trimester of pregnancy.

WSJ: It's Now a Grind For 2-Year-Olds