You get 2,000 people jostling each other and bumping into furniture.

你令2000人互相推搡并撞倒家具。

Earthquakes are caused by two tectonic plates bumping into each other.

地震是由两块地壳构造板块互相碰撞造成的。

Indeed they were constantly bumping.

实际上，它们一直在碰撞。

One positive outcome that could arise from bumping into a friendly ETI is that it takes our fledgling race under its wing (tentacle).

若是遇到友善的外星智慧生物，其积极后果之一就是会将我们这个幼稚的文明置于其卵翼（或触手）之下。

Sensors stop her from bumping into other cars or people.

传感系统能阻止她撞到别的车或行人。