I panicked when I saw smoke coming out of the engine.

我看见发动机冒烟时，吓得手足无措。

《牛津词典》

I panicked. "What am I going to do?"

我惊慌失措：“我该怎么办？”

youdao

When the Academy called, I panicked.

当奥斯卡评委会打电话给我，我慌张极了。

youdao

Bella, I'm so sorry. I panicked.

VOA: standard.other

What happened I will explain in time but put it this way, it was an accident and I panicked.

BBC: Tia Sharp murder trial: full Stuart Hazell letter

"I've been down that road a few times before and to be honest I panicked when I heard about it, " he said.

BBC: Distin signs Portsmouth contract

"I really drove one relationship into the ground because I panicked so much, " says Lewak, a 28-year-old freelance writer from New York City.

CNN: Angst of being single in wedding season