另一个与传统设计课教学不同的是，提速者需要依赖外来专家。
Another way in which the expeditor role has differed from traditional studio instructorship has been the necessary reliance on outside experts.
很多年来，全国很多高中一直依靠外来专家教授一些敏感话题，如人类免疫功能缺陷病毒感染和妊娠预防。
For years, many high schools around the country have been relying on outside experts to teach sensitive subjects such as the human immunodeficiency virus (HIV) infection and pregnancy prevention.
根据哈佛大学经济专家 George Borjas 的一项研究，外来移民使美国高中辍学生的工资在1980-2000年间减少了9%。
According to a study by George Borjas, a Harvard economist, immigration reduced the wages of American high-school dropouts by 9% between 1980-2000.
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