解釋

adj.頻繁的，時常發生的，常見的；（脈搏等）急促的，快的；

vt.常到，光顧，常與…交往；常去，時常出入于；

例句

Review your frequent - flier accounts often , and use the miles whenever possible.
檢查你的常飛顧客酬賓(frequent-flier )賬戶, 盡可能使用打折機票.

The set of frequent closed patterns uniquely determines the complete set of all frequent patterns.
頻繁閉合模式集可唯一確定頻繁模式完全集.

These contacts and negotiations become more frequent whenever the Japanese intensify their offensives.
特別是在日寇進攻緊急的時候,這種聯繫和談判就來得越多.

Frequent use is the key to directness of comprehension as well as of expression _ r.
經常地使用語言是能夠直接理解和直接表達的關鍵.

Take a frequent backward look at yesterday, you will value today and look forward to tomorrow.
經常的回顧昨天, 你會珍惜今天並嚮往明天.