fluent

形容词 fluent:

1. smooth and unconstrained in movement
   同义词：fluid, liquid, smooth
2. expressing yourself readily, clearly, effectively
   同义词：eloquent, facile, silver, silver-tongued, smooth-spoken

1. She speaks fluent and idiomatic French.
   她说得一口又流利又地道的法语。
2. She likes him all the better for his fluent spoken English.
   正因为他操一口流利的英语，她更爱他。
3. She is fluent in English.
   她熟练掌握英语。
4. Her fluent movements surprised us.
   她那协调优美的动作让我们惊奇。
5. He speaks fluent German.
   他操一口流利的德语。

flu.ent

adj.（形容词）

Able to express oneself readily and effortlessly:
流畅的：能够欣然地和毫不费力地表达自己的：
例句：
a fluent speaker; fluent in three languages.
能言善道的演讲者；流畅地说三种语言

Flowing effortlessly; polished:
流利的：不费力地表达的；训练有素的：
例句：
speaks fluent Russian; gave a fluent performance of the sonata.
说一口流利的俄语；流利地演奏这支奏鸣曲

Flowing or moving smoothly; graceful:
线条畅流的：顺畅地流动或移动；优美的：
例句：
a yacht with long, fluent curves.
一条修长而曲线流畅的游艇

Flowing or capable of flowing; fluid.
畅流的：畅流的或能够畅流的；液态的

来源：
Latin fluôns fluent- [present participle of] fluere [to flow] * see bhleu-
拉丁语 fluôns fluent- [] fluere的现在分词 [流动] *参见 bhleu-

【引伸】
flu.ency
n.（名词）
flu.ently
adv.（副词）