presharpen

词形变化

presharpened presharpening presharpens 三单 presharpens presharpening 现在分词 presharpened 过去式 presharpened 过去分词

释义与例句

v.
  1. 1.

    To sharpen in advance.

    及物

词源

From pre- + sharpen.

来源：wiktionary