在这个传递和反射的过程中，声音发生了变化，回声的变化使蝙蝠能够感知到目标的特征。

In this process of transmission and reflection, the sounds are changed, and the changes in the echoes enable the bat to perceive features of the target.

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这一变化使他们的开支减少了一半，但新的生活安排太具有挑战性了。

The change cut their expenditures in half, but the new living arrangement proved too challenging.

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这个变化使当地的昆虫被分隔开来，现在分居于河的两岸，彼此的基因流动已被完全截断。

The change separated populations of insects now living along opposite shore, completely cutting off gene flow between them.

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As it does that it changes the volume of the heart and gives the - creates the pressure that moves blood around your body, so it has that muscular system.

这使心脏的体积发生变化,产生了足以使血液流遍全身的压力,这就是心脏中有肌肉系统的原因

耶鲁公开课 - 生物医学工程探索课程节选

There's a local change in the membrane, that local change involves opening of channels that allow ions to pass through regions where they couldn't pass through before, that results in a change in voltage.

膜上会发生局部变化,局部变化包括离子通道开启,使离子通过,先前不能通过的区域,从而引起电压的变化

耶鲁公开课 - 生物医学工程探索课程节选

There are 100 of these molecules, when a receptor gets activated a kinase activity gets activated, the kinase acts on the protein, the protein gets switched on, something new starts to happen inside the cell.

有一百个这样的分子,当受体被激活,激酶被激活后,激酶作用于蛋白,使蛋白活化,细胞中就会发生一些新变化

耶鲁公开课 - 生物医学工程探索课程节选