persuasiveness
n. 说服力；信服；口才好
例句
There is inherent persuasiveness in some voices.
有些人的声音天生具有一种说服力。
《新英汉大辞典》
His speech failed in persuasiveness and proof.
他的讲演缺乏说服力和论据。
Huntington's arguments were always made with great force, erudition, and persuasiveness.
亨廷顿的论断总是很给力，博学多闻，具有说服力。
