fluent /ˈfluːwənt/ adjective Learner's definition of FLUENT
[more fluent; most fluent]
1
a : able to speak a language easily and very well(说话)流利的 —
often + in b ◊ Language that is fluent is language that is spoken easily and very well.(语言)流利的,流畅的
2
: done in a smooth and easy way(做事)娴熟的,流畅的