| 词汇 | margin |
| 词根词缀 | 词源： mid-14c., "space between a block of text and the edge of a page," from L. margo (gen. marginis) "edge," from PIE *mereg- "edge, boundary" (see mark (1)). General sense of "boundary space" is from late 14c. Meaning "comfort allowance, cushion" is from 1851; margin of safety first recorded 1888. Stock market sense of "sum deposited with a broker to cover risk of loss" is from 1848. Related: Margins. 词根记忆： n. 页边空白;边缘;馀地;幅度Pandas are on the margin of extinction.大熊猫已濒临绝种. |
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