failed

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Researchers studied more than one hundred fifty patients whose condition had failed to improve after taking at least one drug.
Now never mind that our own experience with virgins has failed to afford us such a spectacle of bodily transformation.
没有关系，如果我们关于贞操的知识,之前未能告诉我们如此壮观的身体转换。
耶鲁公开课 - 弥尔顿课程节选
One situation is when you're speaking with a friend who had given you really good advice that you failed to take.
一种情况是，当你正在和一个朋友交谈，他之前曾给你一些很好的建议，但你却没有采纳。
I should have 课堂 - SpeakingMax英语口语达人

Wardrop also leans on his suppliers to redesign any failed components rather than simply replace them.
FORBES: The Cortez of steel doesn't look back

If you fail to do something that you were trying to do, you are unable to do it or do not succeed in doing it.
If an activity, attempt, or plan fails, it is not successful.
If someone or something fails to do a particular thing that they should have done, they do not do it.
If something fails, it stops working properly, or does not do what it is supposed to do.
If a business, organization, or system fails, it becomes unable to continue in operation or in existence.
If something such as your health or a physical quality is failing, it is becoming gradually weaker or less effective.
If someone fails you, they do not do what you had expected or trusted them to do.
If someone fails a test, examination, or course, they perform badly in it and do not reach the standard that is required.
Fail is also a noun.
If someone fails you in a test, examination, or course, they judge that you have not reached a high enough standard in it.
You say if all else fails to suggest what could be done in a certain situation if all the other things you have tried are unsuccessful.
You use without fail to emphasize that something always happens.
You use without fail to emphasize an order or a promise.

失败
Two cases failed due to the infection of incision.
其中2例就医者因切口感染造成手术失败。
计算机科学技术
失败的
action, coordination pattern and decision process. Many exist group decision systems have been failed.
许多现有的群体决策支持系统都失败了，导致失败的因素很多，但主要是由于不能提供对群体决策进行广泛支持以及对各种不可预料的群体活动进行灵活支持的能力，即缺乏柔性。