n.外集团，外围集团
She rapped outgroup of ancient writers'names without a break.
她一口气说出了一大串古代作家的名字.
What does group membership mean? How should we measure it? Ingroup vs. outgroup.
群体会员的意思是 什么 ?我们应如何衡量? 圈内与圈外.
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