quantum of world trade的用法和樣例：
例句
- The port handles about 90 per cent of Hong Kong's trade,by weight.
經由港口處理的貨運量，以重量計算約佔本港貿易總額的九成。 - Hong Kong's success is reflected in the volume of its total trade, its global ranking as a trading entity and sophistication of its exports in recent years.
本港的貿易總額龐大，在世界貿易體系排名佔先，出口貨品質素精良，這些都是本港商貿佳績的最好明證。
