Njikwa ihe egwu tupu ya na ụlọ ọrụ China na-arụkọ ọrụ na nnukwu ahia ahia
Nzọụkwụ mbụ na njikwa ihe egwu maka ịzụ ahịa ngwa ahịa buru ibu bụ iji nlezianya dozie ihe egwu nwere ike tupu ịbanye na nkwekọrịta. Iji belata ihe egwu, ụlọ ọrụ azụmaahịa ga-emerịrị usoro iji wedata, zere, kesaa, na jikwaa ihe egwu dabere na ọnọdụ dị iche iche.