| 单词 | expiration |
| 释义 | expiration (ekspɪreɪʃən ) uncountable noun The expiration of a fixed period of time is its ending. [formal] ...a few hours before the expiration of the midnight deadline. [+ of] Collocations: patent expiration The world's big pharma companies have well-documented problems, with concerns over patent expiration and tougher regulation causing share prices to wilt. Times, Sunday Times If granted, these patents reset the clock on patent expiration. Retrieved from Wikipedia CC BY-SA 3.0 Total patent expiration occurred later in 2007. Retrieved from Wikipedia CC BY-SA 3.0 |
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