Someone's spiel is a well-prepared speech that they make, and that they have usually made many times before, often in order to persuade you to buy something.
英汉词典释义
vt.
流利地讲话, 熟背般地讲
spiel off<美俚>象背诵一样滔滔不绝地讲
英英词典释义
Noun
1. plausible glib talk (especially useful to a salesperson)
Verb
1. replay (as a melody);
"Play it again, Sam""She played the third movement very beautifully"