I had the largest independent mining operation and I had the largest dry cargo shipping operation, which came from nothing.

我拥有世界上最大的独立采矿公司和世界上最大的船运公司，而且二者都经历了从无到有，由小变大。

Bulk carriers are ships that carry dry cargo of one particular kind, such as sugar, coal or wheat, with iron ore being by far the most important.

驳船是指装运某种干货，如糖、煤或小麦等的船只，不过最主要的还是装运铁矿。