mfe
Langaz maternel a enn ot-nivo, plis enn lot langaz, ki, si langaz maternel a enn ot-nivo, kapav vinn a enn ot-nivo, li osi, setadir onivo CALP.
eng
It means the mother tongue to a high level, plus another language that can develop to the same high level, too, that is to the level of CALP.