Fluttered
v. 飘动( flutter的过去式和过去分词 ); （心）快速跳动; 振翼, 拍翅膀
🗣️ 情景例句
If you don't finish your homework, you'll be in big, big trouble.
如果你不完成作业，你就有大麻烦了。
He is listening to the strange noise.
他在倾听这奇怪的声音。
But instruments far more delicate than that were needed if any really serious advance was to be made.
但是，如果要取得真正重大的进展，需要有比这种装置精细得多的仪器。