他以前的尝试没有成功 his previous attempts had been unsuccessful
他们修理其中一艘船的尝试没有成功，他们不得不留在废弃的基地，那里只有面粉和食用油。
Their attempts to fix one of the boats did not succeed and they had to remain at the abandoned base, where there were only flour and cooking fat.
我们的尝试没有成功，不得不放弃。
他跻身政界的第一次尝试没有成功。
His first sortie into (ie attempt to enter) politics was unsuccessful.
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