在西尔弗伯格博士看来，借助狭义相对论，圣诞老人在他的参照系中有充足的时间来递送所有的礼物，而这一切在我们的参照系中却只是眨眼之间。
In Dr Silverberg's view, special relativity gives Santa ample opportunity, within his frame of reference, to deliver all those presents in what is a blink of the eye by our frame of reference.
凯西对着走廊的窗户啜泣，路格博士和马修则走进了化验室。
Kathy wept against a hallway window while Dr. Luger and Matthew walked into an exam room.
塞林格曾说，西摩和霍尔顿的原型是他一个死去的学校朋友，因此，记者和准博士们对这个原型的找寻就从没有停息。
Salinger once said that Seymour and Holden were modeled after a dead school friend, so reporters and Ph.D. candidates are forever searching for him.
前美国营养学院的院长米尔德里德•S•西利格博士说，大部分美国人镁的摄入量都达不到推荐饮食定量（RDA）的标准（女性280毫克，男性350毫克）。
Most Americans do not eat the Recommended Dietary Allowance(RDA)of magnesium (280 mg. for women, 350 mg for men), says Dr. Mildred S. Seelig, former president of the American College of Nutrition.
西格曼博士致力于研究两万年前微型海洋植物海藻是如何高效利用氮元素的。
Sigman has been trying to piece together how efficiently tiny ocean plants - algae - were using nitrogen about 20,000 years ago.
西格曼博士致力于研究两万年前微型海洋植物海藻是如何高效利用氮元素的。
Sigman has been trying to piece together how efficiently tiny ocean plants - algae - were using nitrogen about 20,000 years ago.
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