滔々

とうとうtoutou

adverb · 'taru' adjective

1. torrentially
2. swiftly flowing (water, esp. river)
3. voluminously flowing
4. (speak) eloquently
5. fluently
6. spout forth (a torrent of speech)
7. flood of the times (moving strongly in one direction)
8. current of the times

Study it in Yanamino