| 单词 | bridgehead | 
| 释义 | Word Frequency bridgehead(ˈbrɪdʒˌhɛd) noun military 1.  an area of ground secured or to be taken on the enemy's side of an obstacle, esp a defended river 2.  a fortified or defensive position at the end of a bridge nearest to the enemy  3.  an advantageous position gained for future expansion   | 
	
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