| 单词 | rearguard action | 
| 释义 | Word Frequency rearguard actiona.  an action fought by a rearguard  b.  a defensive action undertaken to try to stop something happening or continuing  Word Frequency rearguard action(ˈrɪəˌɡɑːd ˈækʃən) noun 1.  military action taken by a group of soldiers who protect the back part of an army, esp when the army is leaving the battle   engaged in a rearguard action with the army 2.  an attempt to prevent something from happening, even though it is probably too late to succeed   a stubborn rearguard action 3. to fight a rearguard action   | 
	
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