Exploitable raw materials were in short supply.

可开发利用的原材料供应不足。

Of 27 new wells drilled, 16 have proved exploitable.

在新钻成的27口井中，已经有16口证明有开发价值。

Your hope was I'd make some exploitable mistake.

你希望我犯一些可以让你利用的错误。