US tech stocks sold off on Tuesday as worries mounted over high valuations for artificial intelligence companies and investors braced themselves for earnings later this week from industry titan Nvidia.
周二，美国科技股遭抛售，原因是市场愈发担忧人工智能公司的高估值，投资者也在为行业巨头英伟达(Nvidia)将于本周稍晚公布的业绩做准备。
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