《隋书·列传·卷三十二》
我推想这里从来就是富商大贾周游经过的地方，所以，对各国情况没有不普遍了解的。
谅由富商大贾，周游经涉，故诸国之事，罔不遍知。
I imagine that this has always been a place where wealthy and important merchants have traveled through, so they would not have been unfamiliar with different countries.