那天晚上，天气突然变了，风开始刮得很大，树林里的树叶发出很大的声音。
That evening the weather suddenly changed — the wind started blowing very hard and the leaves in the forest made a loud rustling sound.
小林看了看天空，发现天空变得很黑，很黑。
Xiao Lin looked up at the sky and found it had turned very, very dark.
她知道，一场大雨就要来了。
She knew a heavy rainstorm was about to arrive.