在单位时间内重复发生的次数，即频率。
Frequency is the number of occurrences of a repeating event per unit time.
请问您多久饮用啤酒的频率，譬如说，在过去六个月内喝啤酒的次数为何？
How often do you usually drink Beer, for example in the last 6 months?
请问您多久饮用啤酒的频率，譬如说，在过去六个月内喝啤酒的次数为何？
How often do you usually drink Beer, for example in the last 6 months?
应用推荐