彼此相对又是叹息又是喊叫。

One to another sighed and cried.

youdao

以色列人和非利士人都摆列队伍，彼此相对。

Israel and the Philistines were drawing up their lines facing each other.

youdao

以色列人和非利士人都摆列队伍，彼此相对。

For Israel and the Philistines had put the battle in array, army against army.

youdao

There's infinite number of them, but they're all moving relative to each other at constant velocity.

有无数个惯性观察者,但是他们都在相对于彼此,做匀速运动

耶鲁公开课 - 基础物理课程节选