“周期性”的英语可以翻译为：periodicity，cyclicity ...

“周期性”的拼音为：zhōu qī xìng...

通货膨胀将继续成为周期性的烦扰。Inflation will remain a recurrent plague.间歇泉周期性地喷发.The geyser erupts periodically.经济危机周期性地发生.Economic crises recur periodically....