短语
中文翻译：未能操作
同义词：
['fail tooperate', 'not operate']
例句：
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1. The machine was designed to fail tooperate when the power went out.
这台机器设计成在电力中断时无法运行。
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2.The software failed to operate as expected.
软件没有按预期工作。
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3. The system was designed tofail to operate if the security measures werebreached.
如果安全措施被破坏，系统将无法运行。