paperknife
noun /ˈpeɪpənaɪf/
  /ˈpeɪpərnaɪf/
(plural paperknives 
 (especially British English)  /ˈpeɪpənaɪvz/
  /ˈpeɪpərnaɪvz/
)(North American English usually letter opener)
- a knife used for opening envelopes拆信刀;开信刀 
| 词汇 | paperknife | 
| 释义 | paperknifenoun /ˈpeɪpənaɪf/  /ˈpeɪpərnaɪf/ (plural paperknives (especially British English)  /ˈpeɪpənaɪvz/  /ˈpeɪpərnaɪvz/) (North American English usually letter opener) 
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