TheU.S.commercialharvestalone(probablyinexcessof$200millionfromthelate1860sto1984)repaidAlaska’s$7.2millionpurchaseprice28timesover.

Question

The U.S.commercial harvest alone (probably in excess of $200 million from the late 1860s to 1984) repaid Alaska’s $7.2 million purchase price 28 times over.

Answer 1

美国就商业收入一项（从十九世纪六十年代末到1984,大概超过200,000,000美金）就把买下阿拉斯加的钱给赚了回来,而且超过了28倍.
这个是说,美国买下阿拉斯加,大大的上算啊,赚回了本,还讨了好处.