奠定 diàndìng to establish
to establish; to fix; to settle
How to remember 奠定: 奠 to found + 定 decide = to establish.
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How it is used
- To lay / establish (a foundation, basis) - 奠定基础 (diàndìng jīchǔ) lay the foundation; 奠定了胜利的基础 (diàndìng le shènglì de jīchǔ) laid the groundwork for victory.
- Almost always pairs with 基础 (foundation) or 基石; about firmly establishing a base for later achievement. Written/formal.