n.摆动；振翼；烦扰

vi.摆动；振翼；烦扰

vt.使心烦；使焦虑

There was a flutter of wings among the trees. 树林里响起一阵飞鸟的拍翅声。

He immediately fell into a great flutter. 他立刻变得心慌意乱。

The news caused a flutter among the teaching staff. 这个消息在全体教师中引起了不安。

Banners fluttered in the breeze. 旗帜在微风中飘扬。

White clouds flutter in the blue sky. 蓝蓝的天上白云飘。

The young bird fluttered its wings. 雏鸟拍打着它的翅膀。

His heart fluttered with fear. 他害怕得心怦怦乱跳。