1520s, "bring to an edge or point," from sharp (adj.) + -en (1). Related: Sharpened; sharpening. Old English verb scearpian meant "to score, scarify;" also compare scearpung "scarifying." To sharpen (one's) pencil "prepare to get to work" is from 1957, American English.
雙語例句
1. Ginny tried to sharpen up some rusty typing skills.
金尼試圖重拾生疏了的打字技術(shù)。
來自柯林斯例句
2. She needs to sharpen up before next month's competition.
下個(gè)月比賽之前,她的水平需要提高一下.
來自《簡明英漢詞典》
3. This exercise will help students sharpen up their reading skills.
這個(gè)練習(xí)將幫助學(xué)生提高閱讀能力.
來自《簡明英漢詞典》
4. The training is designed to sharpen the fighter's reflexes.