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英語單字
upgrade
C1英 /ˈʌpɡreɪd/美 /ˈʌpɡreɪd/
noun
升級；提升
the act of making a machine, computer system, etc. more powerful and efficient; the more powerful and efficient machine, computer system, etc.
verb
升級；提升
to make a machine, computer system, etc. more powerful and efficient; to start using a new and better version of a machine, system, etc.
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Transportation: I think the smart strategy is to first go for cargo delivery—essentially satellite delivery—and our eventual upgrade path is to fold the successor to Saturn V.
關於交通運輸：我認為明智的策略是先專注於貨運——本質上是衛星送貨——而我們最終的升級路徑是摺疊並複用土星五號的繼任者。
Elon Musk's 2003 Stanford University Entrepreneurial Thought Leaders Lecture
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