a calculable risk的用法和样例：
- There is a calculated risk in anesthetizing this patient.
- The sending of soldiers to the rebellious island was a calculated risk.
- That left the plant in a dangerously unprotected condition, a calculated risk.
- He took a calculated risk(= a risk that you decide is worth taking even though you know it might have bad results).
- We are each taking a calculated risk that our investment will give us inordinate returns.