这个实验的想法来自于观察鸟类使用工具随机挑选物体，比如在一些布上印有蜘蛛的图片。

The idea for the experiment came from observing the birds using tools to pick at random objects, such as a picture of a spider that was printed on some cloth.

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让孩子参与装饰教室，用他们创作或挑选的图片。

Have children participate in decorating the classroom with pictures they create or select.

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这些是我们为你挑选的50张很棒的图片，尽情欣赏吧。

Here are 50 great photos we picked for you, enjoy the post.

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Here, I've just picked a couple of the pictures that I showed you last time when we were talking about cell communication in the immune system, What happens after the vaccine is introduced into your body is that it initiates cellular events.

我挑选了,我上次给你们展示的几幅图片,当我们讨论到,免疫系统中的细胞沟通时,讲到过当人体接种疫苗之后,能够触发,细胞活动

耶鲁公开课 - 生物医学工程探索课程节选