| 例句 |
I was born during one of the periodical wanderings of my family.我出生在一个我家周期性的流浪时期。These events occur cyclically.这些事是周期性出现的。Certain fevers recur at regular intervals.有些发烧症状会周期性反复出现。Periodic failures of the olive crop kept the country in constant debt.橄榄周期性歉收使得国家常年负债。Changes in the economy have followed a cyclical pattern.经济呈周期性变化。Monsoon rains are seasonal in Asia.季风雨在亚洲是周期性的。 |