The businesses of the biggest tech companies are like fortresses, flanked by high walls and encircled by moats. Their platforms are cornerstones of digital life that support billions of users. At the same time, their business ecosystems, the networks of partners and tech allies that circle in their orbit, make them hard to unseat. Since the pandemic, the profits and growth of Big Tech have lifted the entire US stock market.
大型科技公司的業務就像堡壘，四周是高牆並環繞著護城河。它們的平臺是數字生活的基石，爲數十億用戶提供服務。與此同時，它們的商業生態系統、合作伙伴網路以及圍繞它們運轉的技術盟友，使它們難以被取代。自新冠疫情以來，大型科技公司的利潤和成長提振了整個美國股市。
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