3VERB (通常因难过或紧张而声音)发颤,颤抖 If your voice trembles, it sounds unsteady and uncertain, usually because you are upset or nervous. (通常因难过或紧张而声音)发颤,颤抖 [literary] [Also + of]
His voice trembled, on the verge of tears. [VERB]
他声音颤抖,泪水在眼眶里打转。
Tremble is also a noun.
'Please understand this,' she began, a tremble in her voice.