coherently, connectedly, fluently, articulately
Он говорил связно и убедительно.
He spoke coherently and convincingly.
Девочка отвечала на уроке связно и спокойно.
The girl answered coherently and calmly in class.
Он говорил связно и понятно объяснял тему.
He spoke coherently and explained the topic clearly.
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