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1. The number of independent firms decreased from 198 to 96.

独立公司的数量从198个减少到了96个。

2. The number of young people obtaining qualifications has remained static or decreased.

获得资格证的年轻人数量一直维持不变或出现下降。

3. Raw-steel production by the nation's mills decreased 2.1% last week.

上周该国钢铁厂的原钢产量下降了2.1%。

4. Since 1945 air forces have decreased in size.

自1945年以来，空军的规模已经有所缩减。

5. The number of new students decreased from 210 to 160 this year.

今年新生人数从210减少到160。