fluent, easy and smooth clear and coherent, smooth 
fließend fließend 
fluente fluente 
courant courant 
fluida fluida fluent, easy and smooth 42 流畅 [-暢] liúchàng (following-smooth) (of writing, speaking, etc.) fluent, easy and smooth: ~的线条smooth lines || 文笔 ~ write with ease and grace || 表达很~ the expression is smooth ' clear and coherent, smooth 43 通顺 [-順] tōngshùn (smooth-coherent) (of writing) clear and coherent, smooth: 这个句子不~. This sentence doesn’t read smoothly || 逻辑 (luóji) ~. The logic is not clear and coherent. '
Cho dù Rosetta vẫn còn mắc lỗi nhưng tiếng Anh của cô ấy đã rất trôi chảy rồi. 
Even though Rosetta still makes mistakes, her English is already very fluent. 
Obwohl Rosetta immer noch Fehler macht, ist ihr Englisch schon sehr gut. 
ถึงโรเซ็ตต้าจะยังพูดผิดบ้างแต่ภาษาอังกฤษเธอก็คล่องมาก 
虽然 萝赛塔 还是 会 讲错 ， 但 她 英语 已经 说 得 很 流畅 。