數不勝數

数不胜数
shǔbùshèngshǔ
(idiom) too many to count; innumerable

CEDICT

too numerous to count

Wiktionary

數量很多，難以數完

維基詞典

Entry Composition

1 數 shǔ
  1. to count
  2. to count as; to regard as
  3. to enumerate; to list
2 不勝 bùshèng
  1. cannot bear or stand
  2. be unequal to
  3. very
  4. extremely
3 數 shǔ
  1. to count
  2. to count as; to regard as
  3. to enumerate; to list