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      首頁英語詞典vanguardvanguard考試真題
      
                    
      
	
      vanguard
      
	
      英 ['v?ngɑ?d]
美['v?nɡɑrd]

      


	    
      
	
        
    
      • 先鋒盾
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      • n. 前鋒科學(xué)衛(wèi)星
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      考試真題
      
	
      
	
      It might seem surprising to think about an item staying in space for that long, but the oldest satellite still in orbit—Vanguard 1—turned 60 in 2018.
      2019年6月六級(jí)真題（第二套）閱讀 Section C