在计算成本时，我们必须为折旧做计划。

We must ___provide ___for depreciation when calculating the costs.

很难说未来应该由什么或谁为退休工人做计划。

It is difficult to tell what or who should ___provide ___for retired workers in the future.

政府需要通过建立储备基金来为潜在的经济危机做计划。

The government needs to ___provide ___for potential economic crises by establishing a reserve fund.