加深 jiāshēn to deepen
How to remember 加深: 加 to add + 深 deep = to deepen.
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How it is used
- To deepen something abstract - 加深印象 (jiāshēn yìnxiàng) deepen an impression, 加深了解 (jiāshēn liǎojiě) deepen understanding.
- It pairs with intangibles (impressions, understanding, feelings, contradictions), not literal depth - for a deeper hole you'd use 挖深 (wā shēn).
- Slightly formal; common in writing about relationships, knowledge, or worsening problems (加深矛盾 deepen a conflict).