千言万语 [- - - yǔ]thousands and thousands of words; a great deal of talk; a host of words; innumeralbe words (to persuade); There's a whole lot we'd like to say.:
•¶千言万语也表达不尽我的感激心情。 No words can fully express my gratitude.
•¶千言万语涌上心头。 Thousands of words welled up in one's heart.