followed by是固定用法。followed by意为“后面有，后面是”followed by是表示被动或者用于过去式的。follow是followed by与follow by的词根。follow的意思如下：1、跟随；追捕；2、沿着；3、按照，听从。

例句

The weather forecast is followed by the pips at 6 o'clock.

天气预报之后即为6点钟报时信号。

The fall of the fascist dictatorship was followed by a left-wing backlash.

法西斯的垮台引起左翼运动的高涨。

The pop star was followed by a train of admirers.

那位流行歌曲歌星周围蜂拥著许多歌迷。

She has bouts of hard work followed by long periods of inactivity.

她总是努力干上一阵，然后一呆就是很长时间。