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TOEFL BNC: 7542 COCA: 8298

sharpen

Word family
sharp·en /ˈʃɑːpən $ ˈʃɑːr-/ ●○○ verb  
1 [intransitiveI, transitiveT]SHARP to make something have a sharper edge or point, or to become sharper (使)变锋利[尖锐]
 Anne sharpened her pencil and got out her homework.
安妮把铅笔削尖,然后拿出家庭作业来。
2 [transitiveT]INCREASE IN ACTIVITY, FEELINGS ETC to make a feeling stronger and more urgent 使〔某种感觉〕增强,加强
 A series of attacks have sharpened fears of more violence.
一连串的袭击事件使人们愈发担心会发生更多暴力事件。
3 [transitiveT] (also sharpen something ↔ up) to improve something so that it is up to the necessary standard, quality etc 使提高,使改进
 The course will help students sharpen their writing skills.
这门课程将帮助学生提高写作技巧。
Examples from the Corpus
sharp·en verb
Chinese
Syllable
Corpus

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