to get rattled by something 紧张(非正式)
英文释义
(INFORMAL) To become confused, fearful, or anxious by something.
例句
The morning before my big speech I was relaxed and confident, but later I got rattled when I could not locate my notes.
早上,我在发表重要演讲之前还很放松和自信,但后来当我找不到我的笔记时,就紧张起来。