One looming worry is commerce with Canada, which will be complicated by stricter passport rules next year as well as by delays in widening a bridge across the border.

• 由于来年有关过境通行证的规定更为严格，加上对跨越两国国界大桥的加宽工程也被推迟，故它们之间的贸易往来就将变得复杂起来。