Translation

• over ten thousand
• fig. untold numbers
• innumerable
• thousands upon thousands

Examples

• 天上万里无云。
  Not a cloud was to be seen in the sky.
• 每年有成千上万的外国人访问日本。
  Thousands of foreigners visit Japan every year.
• 成千上万的人想要知道答案。
  Thousands of people wanted to know the answer.