Nuburyo bwingenzi bwububiko bugezweho, urukuta rwikirahure urukuta rufite ibyiza byinshi byihariye. Ubwa mbere, urukuta rw'umwenda w'ikirahure rushobora kongera uburebure n'ibigezweho mu nyubako, bigatuma rwihariye mu mujyi. Icya kabiri, ikirahuri cyikirahure kirashobora gukoresha cyane urumuri rusanzwe, kugabanya nee ...
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