fluent
/ˈfluːənt/adjective
1- (of a person) able to express oneself easily and articulately（人）表达流利的：
a fluent speaker and writer on technical subjects.
对技术问题表达流利的演讲人和作家。
1.1
- (of a person) able to speak or write a particular foreign language easily and accurately（人）外语说写流利的：
she became fluent in French and German.
她能熟练运用法语和德语了。
1.2
- (of a foreign language) spoken accurately and with facility（外语）口头流利表达的：
he spoke fluent Spanish.
他的西班牙语讲得很流利。
1.3
- (of speech, language, movement, or style) smoothly graceful and easy（讲话, 语言, 动作, 风度）优美自如的：
his style of play was fast and fluent.
他的动作轻快优美。
1.4
- able to flow freely; fluid畅流的; 能流动的：
a fluent discharge from the nose.
鼻涕流畅。
派生词
fluently
adverb词源
late 16th cent. （also in the literal sense 'flowing freely or abundantly'）： from Latin fluent- 'flowing', from the verb fluere.