系統(tǒng)升級的英文：
system upgrade

system是什么意思：
n. 體系，系統(tǒng)；設(shè)備；制度；方法；身體；次序
  • Is the system unstable?
    是系統(tǒng)不穩(wěn)定嗎？
  • It was not a perfect system.
    它不是一個完美的系統(tǒng)。
  • This is a sexpartite system.
    這是一個由六部分組成的系統(tǒng)。
  • Anatomically, the nervous system is divided into the central nervous system and the peripheral nervous system.
    解剖學(xué)上把神經(jīng)組織分為中樞神經(jīng)系統(tǒng)和周圍神經(jīng)系統(tǒng)。
  • disaccord between the economic system and political system
    經(jīng)濟體制與政治體系間的不協(xié)調(diào)
upgrade是什么意思：
n. 上坡，上升；升級
v. 改良，升級；晉升，提升
  • Companies need to upgrade servers.
    公司需要對服務(wù)器升級。
  • He was upgraded to security guard.
    他被擢升為保安。
  • The first is upgrading our infrastructure.
    首先，我們要改善我們的基礎(chǔ)設(shè)施。
  • You must upgrade to Premium to burn this file.
    您必須升級到精品版才能刻錄此文件。
  • The power plant received a new upgrade.
    那個電廠進行了一次升級改造。

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