1 . frequently
单字小铺1. frequently adv. 频繁,常常2. particularly adv. 尤其
2 . frequent
frequent ,中国百科网... To pay frequent visits to; be in or at often: 时常出入:频繁的访问;经常在那儿或常常出现: frequent a restaurant. 常去的饭馆.
3 . frequency
denigration n. 贬损frequency n. 频繁beneficial effect 有利影响
4 . often
how often 多频繁。用于提问频率e.g.sometimes类,every day类,once a day类等。 热心问友 2011-12-06 常用于提问“多长时间做一次某事”。How often do.