Amashubhu ethusi ayizicucu eziyisilinda ezingenalutho ezenziwe ngethusi, ingxubevange yethusi ne-zinc.Lawa mashubhu asetshenziswa kakhulu ezimbonini ezahlukahlukene ngenxa yamandla awo, ukuqina kwawo, nokungagqwali kwawo.Ngokuhamba kweminyaka, amashubhu ethusi abe yingxenye ebalulekile ku-manu...
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