| 词汇 | back-of-the-envelope |
| 释义 | back-of-the-envelope 1 ENTRIES FOUND: back-of-the-envelope (adjective) back-of-the-envelope adjective back-of-the-envelope adjective Learner's definition of BACK-OF-THE-ENVELOPE always used before a noun informal : done to provide a rough idea of something粗略估算的 I can't tell you the exact amount, but my back-of-the-envelope [=rough] calculation indicates a cost of about $300,000.我无法告知你确切的金额，但我粗略估算的费用在30万美元左右。 |
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