frequency count的用法和樣例：
例句
- It is usually necessary to do various frequency counts with the more advanced type crypts.
在解一個較難的密碼時，通常需要進行各種頻率統計。 - They maintain that the population base used to give frequency statistics must be drawn from the suspect's particular gene pool.
他們聲稱用於頻率統計的人口基數必須從嫌疑犯的特定基因庫中獲得。
