Hydropower plant only comes into play when the sun goes down or when the wind falls.

水力发电厂只有在太阳下山或风力减弱时才会发挥作用。

The wind fell, for a second, round Thornfield; but far away over wood and water, poured a wild, melancholy wail: it was sad to listen to, and I ran off again.

有那么一瞬间，风在桑菲尔德周围吹过；但在远处的树林和水面上，传来了一声狂野、忧郁的哀号：听着很难过，我又跑开了。