Okwu ule mmiri

Nlele mmiri nke ọnụ ụzọ Iju mmiri mgbe etinyechara ya

Ọrụ ọ bụla ga-anwale mmiri maka nnabata mgbe echichi gasịrị.

Nnwale mmirinke hydrodynamic akpaka idei mmiri mgbochi na Beijing Metro.

ajuju nkọwa