a steep rise in unemployment

• 失业率的激增

a steep rise in unemployment的用法和样例：

例句

1. It failed to stimulate a surge of investment in industry.
   这没有能刺激工业投资的激增。
2. But the most hopeful sign is the surge in bank lending.
   但是最能说明问题的还是银行贷款的激增。