photoharden

词形变化

photohardened photohardening photohardens 三单 photohardens photohardening 现在分词 photohardened 过去式 photohardened 过去分词

释义与例句

v.
  1. 1.

    To harden by exposure to light.

    及物

词源

From photo- + harden.

来源：wiktionary