Fluttering
v. 飘动( flutter的现在分词 ); （心）快速跳动; 振翼, 拍翅膀
✅ 同义词
🗣️ 情景例句
I understand.
我了解。
He who imagines that he has knowledge enough has none.
自以为学识丰富的人是没有什么学问的人。
Hello. You look tired today.
你好。你今天显得有点儿累。