老生常谈 (lǎo shēng cháng tán) — a platitude; a cliché

Definition

A chengyu meaning a stale, over-repeated idea — literally 'what an old scholar always says.' It criticizes a statement as a boring cliché with no fresh insight, stronger than just calling something "common."

idiom
a platitudea cliché

Examples

  • 老生常谈
    Tā de huà dōu shì lǎo shēng cháng tán, méi shén me xīn yì.
    His words are all clichés, nothing new.
  • 老生常谈
    Zhè piān wén zhāng de guān diǎn dōu shì lǎo shēng cháng tán, méi yǒu shēn dù.
    The viewpoints in this article are all platitudes, no depth.
  • 老生常谈
    Bié zài shuō zhè xiē lǎo shēng cháng tán le, shuō diǎn xīn xiān de.
    Don't talk about these clichés anymore, say something fresh.

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