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1·The number of poor men is on the decrease as the economy is growing.

随着经济发展，贫困人口数量正在减少。

2·The birthrate is on the decrease.

人口出生率正在下降。

3·Is crime on the decrease?

犯罪的案件是否在减少中？

4·The population of this city is on the decrease.

这个城市的人口正逐渐减少。

5·We found the demand for milk is on the decrease.

我们发现牛奶的需求在减少。

6·The demand for tea is on the decrease (each year).

茶叶的需求量(逐年)递减。

7·A local newspaper remarks that crime is on the decrease.

一家地方报纸评论说犯罪案件在减少。

8·A local newspaper remarked that crime was on the decrease.

一家地方报纸评论说犯罪案件在减少。

9·Triacontanol causes promotional effects on the decrease in number of empty grains in hybrid rice.

三十烷醇对降低杂交稻空壳粒也有效果，对千粒重无明显影响。

10·These data confirm the possible influence of arterial oxygenation on the decrease in peak heart rate in acute hypoxia.

这些数据提示急性缺氧时最大心率变化受动脉血氧合程度影响。