a group of people leading the way in new developments or ideas
(新发展或新思想的)先驱者;前卫
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the experimental spirit of the modernist vanguard .现代主义先驱的实验精神。
a position at the forefront of new developments or ideas
先锋地位
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the prototype was in the vanguard of technical development .该原型处于技术发展的先锋地位。
the foremost part of an advancing army or naval force
先头部队。
"late Middle English (denoting the foremost part of an army): shortening of Old French