上限 shàngxiàn upper bound
How to remember 上限: 上 above + 限 boundary = upper bound.
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How it is used
- 'Upper limit, ceiling, cap' - 设定消费上限 (shèdìng xiāofèi shàngxiàn) set a spending cap.
- Contrast 下限 (lower limit/floor); common in finance, regulation, and specs.