According to the Brookings Institution, a short list of eight American cities that included San Francisco, San Jose, Boston, and Seattle had roughly 38% of all tech jobs by 2019.
根据布鲁金斯学会的数据，到2019年，包括旧金山、圣何塞、波士顿和西雅图在内的美国八个城市，占据了所有科技工作的约38%。
New AI technologies are particularly concentrated: Brookings’s Mark Muro and Sifan Liu estimate that just 15 cities account for two-thirds of the AI assets and capabilities in the United States (San Francisco and San Jose alone account for about one-quarter).
新的AI技术特别集中：布鲁金斯学会的马克·穆罗和刘思凡估计，仅15个城市就占美国AI资产和能力的三分之二（仅旧金山和圣何塞两地就占约四分之一）。
例句取自历年考研英语真题，翻译为机器生成，仅供学习参考。