fluttering wings
fluttering heart
fluttered eyelashes
fluttering motion
A: Why is your heart fluttering so fast?
A：你的心跳为什么这么快？
B: I'm just a bit nervous about the presentation.
B：我只是对演讲感到有点紧张。
1) 拍动、扇动（翅膀或布料）
2) （心）悸动、跳动
3) 颤动、抖动
1. 拍动；扇动；（心）悸动
verb
1. to move with light, irregular, or rapid motions.
Synonym: flap, wave, quiver