up leveling的用法和樣例：
例句
- The Singapore government recently set up two high-level committees to handle this task.
最近，新加坡政府成立了兩個高層次的委員會來負責這項重任。 - APEC is a regional forum set up in 1989 for high-level government-to-government dialogue and co-operation on trade and economic issues.
亞太經合組織於一九八九年成立，目的是提供一個地區論壇，讓各成員政府就經貿事宜展開高層次對話和合作。
