■ verb
1》 harden the surface of (a material).
2》 [as adjective ~ed ] made callous or tough by experience.
CASE-HARDEN
Meaning of CASE-HARDEN in English
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004
■ verb
1》 harden the surface of (a material).
2》 [as adjective ~ed ] made callous or tough by experience.
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004