膨胀

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Character Breakdown

Meaning and Usage

The word "膨胀" (péngzhàng) primarily means "to expand" or "to swell." It is commonly used to describe physical expansion, such as a balloon inflating or materials expanding due to heat. Beyond the literal sense, it also applies metaphorically to economic growth (economic expansion) or abstract concepts like ego or pride swelling.

Common Collocations

  • 经济膨胀 (economic expansion): used in discussions about economic growth and inflation.
  • 膨胀气球 (inflated balloon): literal physical swelling.
  • 自尊膨胀 (inflated ego): metaphorical use describing pride or arrogance increasing.

Usage Notes

When used literally, "膨胀" often describes physical objects increasing in size due to external factors like heat or pressure. Metaphorically, it can describe intangible things growing excessively, often with a negative connotation, such as inflated pride or costs. It is a neutral to formal term, suitable in both spoken and written contexts.

Common Confusions

Do not confuse "膨胀" with "扩张" (kuòzhāng), which also means "expand" but is more often used for territorial or abstract expansions. "膨胀" emphasizes swelling or inflation, often physical or quantitative increase.

Example Sentences

The balloon starts to expand after heating.

Economic expansion leads to rising prices.

His ego inflated and he became very proud.