Wall Street frets over Big Tech’s $200bn AI spending splurge
华尔街对大型科技公司2000亿美元的人工智能支出感到担忧

The four biggest US internet groups this week showed glimpses of benefits but warned of increased spending
本周，美国四大互联网集团的AI效益初现端倪，但也警告说将增加支出。