(of a person's voice or a part of their body) in a tremulous way (= shaking slightly), often because you are nervous or frightened

She looked at her mother and grandmother and smiled tremulously. 她看着她的母亲和祖母，怯生生地笑了笑。

"Are you a vampire?" he asks tremulously at one point. “你是吸血鬼吗？”他曾颤抖着问道。