fitful l一阵阵的
fitful rain一阵阵雨
Fitful Yet寡欢
fitful sector适应区
fitful sleep时睡时醒的睡眠
Fitful bioreactor间歇反应器法
fitful moving间歇运动
a fitful pain一阵阵心痛
a fitful wind方向不定的风
ADJ（形容词） Something that is fitful happens for irregular periods of time or occurs at irregular times, rather than being continuous. 一阵阵的
Colin drifted off into a fitful sleep.
科林迷迷糊糊地进入断断续续的睡眠中。