| 词汇 | cast-iron guarantee, alibi, etc. | 
| 释义 | cast-iron guarantee, alibi, etc. phrase   永不反悔的保证(无懈可击的不在现场的证据等) a guarantee, alibi, etc. that can be trusted completely  Can you give me a cast-iron guarantee that the work will be completed on time? 你能向我确保按时完成那项工作吗?   Walker had a cast-iron alibi which meant he was nowhere near Coventry on the day he was murdered.  There are few cast-iron certainties in this situation.  There are no cast-iron guarantees when it comes to investing.  They are seeking cast-iron assurances that there will be no redundancies. See also: cast-iron | 
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