periodic

美音音标: [.pɪəri'ɒdɪk] periodic
英音音标: [.pɪəri'ɒdɪk] result.0.expl|add:"

同义
periodic periodical
词性
a
解释
happening or recurring at regular intervals
示例
the periodic appearance of the seventeen-year locust

同义
occasional periodic
词性
s
解释
recurring or reappearing from time to time
示例
periodic feelings of anxiety