declining rate造句怎么写

The declining rates may help people to shake off the idea that crime rises during economic downturns.

Methods The densities of cockroaches were monitored by adhesive trap. The killing efficacy was evaluated with declining rate of density.

White male death-rate increased in a declining rate.

The retail price was down by 1.9%; the declining rate was 0.9 percentage points lower over that in the last quarter.