Launchpad currently recommends translating glibc in Ubuntu Focal.

Template "libc" in Ubuntu Focal package "glibc"

Language Status Untranslated Need review Changed Last Edited By
Cherokee 100.00  100.0% untranslated 1465 1465 0 0
Dakota 100.00  100.0% untranslated 1465 1465 0 0
Hawaiian 100.00  100.0% untranslated 1465 1465 0 0
Inuktitut 100.00  100.0% untranslated 1465 1465 0 0
Lakota 100.00  100.0% untranslated 1465 1465 0 0
Ojibwe 100.00  100.0% untranslated 1465 1465 0 0
Spanish 006.14  93.8566552901% translated  6.1433447099% untranslated 90 90 10 10 322 322 2019-04-08 10:18:55 UTC 2019-04-08 Santiago Vila Doncel
Tlingit 100.00  100.0% untranslated 1465 1465 0 0
Yiddish 100.00  100.0% untranslated 1465 1465 0 0
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Key to this table: “Unchanged” means Translated
and “untranslated” means just that, Untranslated

Other versions of glibc in Ubuntu