最理想的是那种能够吸收震动的路面，而不是将震动传给你的腿。

Ideally, you want the ground to absorb shock, rather than passing it along to your legs.

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科学家说，通过地震信息预测海啸本身是很困难的，因为地震可能上下震动海床，也可能左右震动海床。

Predicting a tsunami from seismic information alone is difficult, scientists say, because the earthquake might have vibrated the seabed up and down, or sideways.

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手机的震动能够被手部皮肤感知，手机铃声也要靠产生声波—声音的震动，然后引起鼓膜震动，我们才能听到铃声。

A cellphone set to vibrate can be sensed by the skin of the hand, and the phone's ringtone generates sound waves - vibrations of air - that move the eardrum.

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