last-ditch

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But his “last-ditch effort” is simply “at slowing things down”, and this bold venture takes the form of typing another memo to his boss.
不过他“建立最后防线的努力”也仅仅是“推迟即将发生的事情”，而这个勇敢的冒险以另一份备忘录的形式提交给他的上司。
Mr Saleh’s latest wrangling with the tribes, whom he has juggled for 33 years as the country’s ruler, is part of his last-ditch effort to prevent his downfall.
萨利赫当权33年间，一直周旋于部落之间，他最后一次与部落的争吵是其为避免下台而进行的最后的沟通努力。
Representatives of China, Russia, Saudi Arabia and America in partiuclar were said to have tried to water down the report, prompting a last-ditch all-night haggle.
据说尤其是中国、俄罗斯、沙特阿拉伯以及美国的代表，曾竭力淡化该报告的内容，直到最后一刻，双方整夜都在讨价还价。

Some see it as a last-ditch attempt by Turkey's old guard to cling to power.
ECONOMIST: A state prosecutor wants to ban the ruling party
Buying gold represents a last-ditch effort to preserve capital in the face of an unstable, weak dollar.
FORBES: Bright Gold, Dim Economy

an effort or attempt that is made at the end of a series of failures to solve a problem, and is not expected to succeed

A last-ditch action is done only because there are no other ways left to achieve something or to prevent something from happening. It is often done without much hope that it will succeed.