startle effect

例句：

1. 1.The sudden noise startled the dog.
   突然的噪音吓到了狗。
2. 2. The unexpected sight startled him.
   意外的景象让他吃了一惊。
3. 3. The loud noise caused a startle effect on everyone present.
   突如其来的响声让在场的每个人都感到震惊。