n.啁啾；叽叽喳喳地说；颤抖
动词twitter的现在分词形式.
Every day it just kept chirping and twittering in the nest and chatting with two adult birds, at which they all felt very much delighted. 每日只在巢里啁啾着，和两只老鸟说着话儿，它们都觉得非常的快乐。
Suddenly her flight wound to an end in a dozen twittering steps. 突然，她的奔逃以十几个颤抖的碎步结束了。
