PanLinx
Sambahsa-mundialect
art-288
difficil
Lingwa de Planeta
art-287
mushkile
Deutsch
deu-000
schwierig
English
eng-000
difficult
English
eng-000
hard
Esperanto
epo-000
malfacila
Nederlands
nld-000
moeilijk
Novial
nov-000
desfasil
русский
rus-000
трудный
PanLex