power failure flag 断电信号旗
The sail looked like the flag of failure forever.
船帆永远像一面失败的旗帜。
Perhaps silent failure or flag return values would be useful, or another sort of fallback operations for error cases.
无声故障或标志返回值可能会有用，或另一种用于错误例子的后退操作会有用。
The difference is subtle: running the test without the optional flag helps you understand the total time, even in the case of a failure.
区别很微妙：在一个失败的样例中，不带可选标志运行测试可以帮您了解运行总时间。
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