另外，前文引用的克拉夫特和普莱斯曼的研究表明微笑能改善心脏的健康状况，因为微笑能在重压下减缓心率。
Additionally, the research by Kraft and Pressman cited above, indicates that smiling may improve heart health by decreasing heart rate after stressful events.
您刚才听到的是加州大学戴维斯分校研究员萨曼塔·普莱斯的讲话。
You're listening to Samantha Price, a researcher at the University of California, Davis.
萨曼塔·普莱斯：蓝鲸可能是有史以来最大的哺乳动物，它们的猎物——磷虾及浮游生物——体型却非常微小，几乎用显微镜才能看见。
Samantha Price: The blue whale which is –we think –is probably the largest ever living mammal… eats these tiny, almost microscopic krill and plankton.
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