fluent的名词是fluency。
1、fluent为形容词adj.，fluently是副词adv.前者用于修饰名词n.，后者用于修饰动词v.或形容词adj.，一个词组be fluent in sth，例如She is fluent in five languages，或着说She speaks five fluent languages，如果用fluently，例如He speaks English very fluently。fluently，英语单词，主要用作副词，作副词时译为“流利地通畅地”。
短语搭配
Not fluently 完全不流利
talk fluently 流利地说
nanswer fluently 对答如流
Print Fluently 打印流畅
Quite Fluently 尚算流畅和通顺
Writing Fluently 书写流利
so fluently 这样流利 如此流利
translate fluently 流畅地翻译
reveal fluently 流畅地展现
例句
He spoke fluently and without unnecessary hesitations.
他说得很流畅，毫不支吾。
She speaks French very fluently， but her pronunciation lets her down.
她法语讲得很流利，但美中不足的是发音不大好。
We were doubly lucky inasmuch as my friend was living on the island and spoke Greek fluently.
我们真是幸运极了，因为我的朋友住在岛上而且希腊语说得很流利。
