to no effect造句怎么写

But some people after pregnancy due to a slight change of hormones, aggravating, but to no effect, fetal basic.

In the end, researchers found no differences in body fat and weight between the two groups, suggesting calcium had little to no effect on weight loss among the teens.

We tried again and again, but to no effect.

We warned them, but to no effect.

"The doctors who were called in dosed him with dozens of catties of cinnamor6 aconitum roots, turtle-shell, liriope, polygonamm and so forth--but all to no effect. "