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“周期性”的拼音為：zhōu qī xìng...

通貨膨脹將繼續(xù)成為周期性的煩擾。Inflation will remain a recurrent plague.間歇泉周期性地噴發(fā).The geyser erupts periodically.經(jīng)濟危機周期性地發(fā)生.Economic crises recur periodically....

“周期性”的英語可以翻譯為：periodicity，cyclicity ...