Typically, the pool would just run until the program ends, but this program ends when the pool is done, so the check is necessary.

通常情况下，线程池会运行到程序结束，但是在线程池完成时这个程序才会结束，所以这个检查非常必要。

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These tests will actually run the test program and check its output.

这些测试实际上会去运行测试程序，并检查它的输出。

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Always check for compilation errors before you generate and run an executable program.

在生成和运行可执行程序时，始终检查是否存在编译错误。

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If they constantly check and recheck all program files and commands to screen out cheaters, the game itself may run so slowly that it puts off everyone.

ECONOMIST: How to cheat at games