sharpen

v. /ˈʃɑːrpn/ B2

削尖；磨快；提高

To make something sharp or clearer and more effective.

仙境例句

The Dodo sharpened a pencil and wrote a list of everything the giant had broken.

渡渡鸟削尖了铅笔，把那个巨人打碎的东西列成了一张单子。