汉语拼音：
【拼音】 pín
英语翻译：
frequency; frequently
相关词条：
1.apparatus 2.instrument例句：
- 公共汽车频繁地从城市驶往机场。Buses run frequently from the city to the airport.
- 近年来死亡事故发生的频率已经下降。Fatal accidents have decreased in frequency over recent years.
- 频繁的停电使工厂停产。Production in the factories stopped because of frequent power failures.
- 那条高速公路上车祸发生得越来越频繁。Accidents on that highway are happening with increasing frequency.
