decrease|decreases|decreased|decreasing

游客数量稳步下降。

There has been a steady ___decrease in the number of visitors.

老虎种群的大幅减少主要是由于它们的美貌。

The huge ___decrease in tiger population is mainly due to their beauty.

我们观察到能源消耗显著减少。

We observed a significant ___decrease in energy consumption.

在夏季，降雨量减少。

During the summer months, rainfall ___decreases.

我们不应该让质量下降。

We should not allow the quality to ___decrease.

公司计划减少其碳排放。

The company plans to ___decrease its carbon emissions.

今年选择理科科目的学生人数急剧下降。

The number of students who chose science subjects ___decreased sharply this year.

政府正在实施旨在降低城市地区污染水平的政策。

The government is implementing policies aimed at ___decreasing pollution levels in urban areas.