fitful

adj.

一阵阵的，不规则的，不稳定的；

1. The whole debate was rather fitful.
   整个辩论断断续续地进行。
2. I studied english fitful for four years.
   我断断续续学了四年英语了。
3. I worried half the night and have a fitful sleep.
   我半个晚上都一直在担心，故而时醒时睡。

On fitful or recurrent vomiting
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Do (Not) Feed the Bears: The Fitful History of Wildlife and Tourists in Yellowstone
The dark side of a fitful night: New studies linking sleep apnea and other disruptions to cancer add to evidence that poor sleep can...
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