tremulous
/ˈtremjʊləs/adjective
1- shaking or quivering slightly震颤的, 颤抖的：
Barbara's voice was tremulous.
芭芭拉的声音在颤抖。
1.1
- timid; nervous胆小的, 腼腆的; 紧张的：
he gave a tremulous smile.
他腼腆一笑。
派生词
tremulously
adverbtremulousness
noun词源
early 17th cent.: from Latin tremulus （from tremere 'tremble'） + -OUS.