LED imadziwika kuti m'badwo wachinayi wa gwero lounikira kapena gwero lobiriwira, lomwe lili ndi mawonekedwe opulumutsa mphamvu, kuteteza chilengedwe, moyo wautali, kukula kochepa ndi zina zotero. Amagwiritsidwa ntchito kwambiri m'magawo osiyanasiyana monga chizindikiritso, chiwonetsero, zokongoletsera, zowunikira kumbuyo, kuyatsa kwanthawi zonse komanso kumatauni ...
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