Snowflakes flutter in the air.

飞雪花了。

《新英汉大辞典》

White clouds flutter in the blue sky.

蓝蓝的天上白云飘。

youdao

It creates a tingling sensation in your fingertips, a flutter in your heart and warmth in your belly.

它使你指尖发麻，心头乱跳，胃里一暖。

youdao

But across their surfaces, dragons writhe through mountains, bamboo leaves flutter in the moonlight and cranes soar through clouds.

FORBES: Art and Seoul

Everywhere you look, lines of colourful prayer flags flutter in the breeze and prayer wheels spin as the water flows beneath them.

BBC: The return of China��s wild panda

And when they occasionally broke the shackles with a foray forward they certainly caused the odd flutter in the Tottenham defence, their best effort of the first half coming when Michael Dawson did well to bravely block from Gretar Steinsson's shot.

BBC: Tottenham 1-0 Bolton