英语语法分析

The key was to use a pulley system that would magnify the applied force.

关键是要使用滑轮系统，以扩大其作用力。

So here is that object and here is the string and a pulley and here a string.

物体和绳子相连,滑轮，细绳。

I, too, shall look at the stars. All the stars will be wells with a rusty pulley.

我也会抬头看星星，每一颗星星都有一口井，上头都有一个生绣的滑轮。