Another feature of language that's not displayed by any form of animal communication is what we call "displacement".
语言的另一个特征是我们所说的“置换性”，这是任何形式的动物交流都不会表现出来的。
2
Partly, they're a form of displacement activity; partly, they give me a series of tiny, self-affirmatory lifts.
一方面是因为，它们成为了一种替代活动；另一方面，他们给予我一系列自我满足的成就感。
3
Formdisplacement, strain, length of crack and so on, we can see timber frame meeting the challenge of anti-seismic, the results show that the frame has good anti-seismic performance.