突然一阵

The leaves were caught up by a sudden gust of wind.

然风把树叶吹起。

A sudden impulse of anger arose in him.

然升起怒火。

I felt a stabbing pain in my chest.

我的胸部然感到刺痛。

A breeze sprang up.

然吹起轻风。

A swift clap of thunder woke me.

然的雷鸣把我惊醒。

A sudden convulsion shook him, and he fell to the ground.

然的挛使发抖，摔倒在地上。

In the middle of the river, I had a look at the river unconsciously, suddenly felt blackout, began to awag.

离河中浅滩还有半的距离时，无意识的看了下边的激流，然眩晕袭上心头，感觉自己的体随水流开始摇摆。