Then the world turned suddenly upside down, the barge seemed to flit lightly across the sky, the wind whistled in his ears, and Toad found himself flying through the air, revolving rapidly as he went.

霎时间，蟾蜍只觉天旋地转，拖船仿佛轻轻地掠过天空，耳边风声呼啸，他感到自己腾空飞起，边飞边迅速地折跟斗。

youdao

Her feet made no sound on the grass, but he turned suddenly to face her.

VOA: special.2009.12.12

It went up, peaked, suddenly turned around, came all the back down.

市场经历了上升,登顶,突然转向,然后暴跌

耶鲁公开课 - 金融市场课程节选

Suddenly the sky turned dark.

VOA: special.2009.02.28

But the match turned suddenly when Pierce began hitting groundstrokes out.

BBC: Error-prone Sampras crashes out

Its best hope is that the solar cell industry doesn't follow the curve of the dram market it is often compared with--a once high-margin technology that turned suddenly, brutally, into a low-profit commodity market.

FORBES: Storm Clouds

Her eyes closed and her face set as if she had suddenly turned to stone.

NPR: Excerpt: 'Sabriel'