rhetoric
/ˈretərɪk; `rɛtərɪk/ n[U]
1 (art of) using language impressively or persuasively, esp in public speaking 修辞; 修辞艺术; 修辞学
impassioned rhetoric 富有表现力的修辞.
2 (derog 贬) elaborate language which is intended to impress but is often insincere, meaningless or exaggerated 华丽的词藻（常含华而不实之意）; 虚夸的言辞
the empty rhetoric of politicians 政客们的花言巧语.