我们似乎对过去最美好的时光有选择性的记忆。

We seem to have a selective memory for the best bits of the past.

《柯林斯英汉双解大词典》

砍伐热带森林是有选择性的，但伐木工人通常优先砍伐最大最古老的树木。

Logging in tropical forests is selective but the timber cutters usually prioritise the biggest and oldest trees.

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达盖尔银版是一种独特的图像，它可以再现相机镜头前微小的、无选择性的细节，而且是不可复制的。

The daguerreotype was a unique image that reproduced what was in front of the camera lens in minute, unselective detail and could not be duplicated.

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However, when that gate is opened, the sodium channel is now going to be incredibly selective and only let through sodium ions and no other type of ion.

但是，当闸门打开的时候，钠离子通道,将会有极高的选择性,不允许除钠离子以外的任何其它离子通过。

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Because the U.S. is an arguably very successful country, so we have, potentially, a bias in--it's called a selection bias.

因为毫无疑问美国是个很成功的国家,因此我们的潜意识中,存在选择性偏差

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And all ion channels are selective for a single type of ion, and we can think about how that selectivity takes place, and that's where this idea of atomic radius is going to become very important.

所有的离子通道都是仅对某一种离子具有选择性的，而我们可以来想一想这种选择性是如何发生的，这也就是原子半径这个概念将会变得，非常重要的地方。

麻省理工公开课 - 化学原理课程节选