1. 颤抖;战栗;哆嗦
    If you tremble, you shake slightly because you are frightened or cold.

tremble

    e.g. His mouth became dry, his eyes widened, and he began to tremble all over...
           他嘴唇发干，眼睛圆睁，全身开始颤抖起来。
    e.g. Gil was white and trembling with anger...
           吉尔脸色发白，气得直发抖。

2. 颤动;摇动;摇晃
    If something trembles, it shakes slightly.

tremble

    e.g. He felt the earth tremble under him...
           他感到大地在脚下颤动。
    e.g. The leaves trembled in the trees.
           树上的叶子瑟瑟抖动。

3. (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.

    e.g. His voice trembled, on the verge of tears.
           他声音颤抖，泪水在眼眶里打转。