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(gè)高層次的委員會(huì )來(lái)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(jīng)合組織于一九八九年成立，目的是提供一個(gè)地區論壇，讓各成員政府就經(jīng)貿事宜展開(kāi)高層次對話(huà)和合作。
