No registration, no complicated rules. Just start playing and have fun!

无需注册，没有复杂的规则。上手即会，开始开心游戏吧！

youdao

The task is further complicated by the fact that international accounting rules tend to be "principles based", which means there are no hard-and-fast codes to follow.

另一个事实，国际会计准则是一个原则性的准则，没有精确细致的执行条例。这使事情变得更加复杂。

youdao

In those days, mail-order firms (there was no E-commerce) argued it would be too complicated to keep track of the different sales tax rules and rates around the country.

FORBES: Time For Congress To Step Into Battle Over Internet Sales Taxes