impotency造句怎么写

Chinese state media say U.S. drug maker Pfizer has won a court case in China against two companies which were copying its immensely popular male impotency treatment, Viagra.

Increasing use of birth control pills is also contributing towards rising impotency, he said.

Earthworms have been eaten to cure impotency.

Once, when analyzing what was suspected to be a counterfeit antimalarial pill, his team discovered traces of sildenafil, the main ingredient in the anti-impotency drug Viagra.