adj.颤抖的;敏感的;胆小的;发抖的手所作的;
例句:
The old man's voice had become at once tremulous.
老人的声音一下子变得颤抖了.
I see her close beside me with silent lips and tremulous.
我看见她紧靠在我的身旁,嘴唇默默地颤粟.
His voice has a timid and tremulous sound.
他的话音听起来叫人胆战又心惊.