形容词
中文翻译：Unknown
同义词：
['infrequent', 'irregular', 'occasional例句：1. The rain was sporadic', 'with heavy downpours interspersed with brief periods of sunshine.（雨是零星的，时而大雨时而晴朗。）2. The schedule was sporadic', 'with meetings scheduled at odd hours and days.（日程安排不规律，会议安排在不固定的时间。）3. The population was sporadic', 'with some areas having a high density while others were sparsely populated.（人口分布不规律，一些地区人口密集而其他地区人口稀少。）']
例句：
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1. The rain was sporadic, with heavy downpours interspersed with brief periods of sunshine.
雨是零星的，时而大雨时而晴朗。
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2. The schedule was sporadic, with meetings scheduled at odd hours and days.
日程安排不规律，会议安排在不固定的时间。
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3. The population was sporadic, with some areas having a high density while others were sparsely populated.
人口分布不规律，一些地区人口密集而其他地区人口稀少。