spearhead
noun /ˈspɪəhed/
  /ˈspɪrhed/
[usually singular]- a person or group that begins an activity or leads an attack against somebody/something先锋;前锋;先头部队 
| 词汇 | spearhead | ||||||||||
| 释义 | spearheadnoun /ˈspɪəhed/  /ˈspɪrhed/[usually singular] 
 spearheadverb /ˈspɪəhed/  /ˈspɪrhed/ 动词形式 
 
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