articulacy

例句：

1. 1. The articulateness of the speaker was clear and persuasive.
   说话人的口才清晰有力。
2. 2. The author's articulacy in writing is exceptional.
   作者在写作方面的口才非常出色。
3. 3. The debater's articulacy in argumentation was impressive.
   辩论者的口才在论辩方面令人印象深刻。