system upgrade的用法和樣例：
例句
- You don't have to pay extra for the new OS or hassle with performing the upgrade.
你不必為新版操作系統支付額外的費用，或者遭遇系統升級的種種麻煩。 - This type of design allows parts of the system to be upgraded without affecting the rest.
這樣的設計讓部份的系統升級時不至於影響其他部份。
system upgrade的相關資料：
臨近單詞
system fan
system
system of transfiguration monitoring
System of A Down- B.Y.O.B.
system service control point service
system of responsibility for finance
system of quaternion matrix equations
system of controlling and supervising
system device of frequency conversion
system aleukemic reticuloendothliosis
system of vector equilibrium problems
system of linear congruence equations
