sharpens; sharpened; sharpening
sharpens; sharpened; sharpening
Learner's definition of SHARPEN
1
[+ object] : to make (something) sharp or sharper磨尖;削尖;磨锋利 2
a [+ object] : to make (something) clearer or more distinct使…更清晰 b [no object] : to become clearer or more distinct变清晰 3
[+ object] : to improve (something)改善;提高 4
[no object] : to become more severe加剧
sharpen up
[phrasal verb]
: to become better, smarter, more skillful, etc.变得更好(或更聪明、更熟练等)