怎样更换LED识别灯盘；关于替换单个的LED要从摇篮到摇篮，或者在组件失效测试后将其扔掉。
How will the LED lamp board be replaced, cradle-to-cradle regards to replacing individual LEDs, whole board, or throw away fixture after component failure?
我的免疫系统失效，因此我接受了一系列的测试。
My immune system was run down and I underwent a series of tests.
相反，他们提供了JUnit断言来通知失效或者展开测试。
Instead, they offer JUnit assertions to both signal the failure and unwind the test.
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