翻译成英文 一句话1

这些规则非常的复杂而且数量非常的多。有的时候就是理解了也不一定就能百分之百的不出差错
With large quantity These rules are very complex. Sometimes even you completely understand them, you cannot promise 100% right when practise.

These rules are not only very complicated, but also in large quantity. Sometimes even understanding it cannot ensure that no mistakes are made.

These rules and regulations are complicated and numerous. Sometimes it is hard to ensure one hundred percent accuracy, even though you understand them.

These rules unusual complex moreover quantity unusual many
Sometimes had understood not necessarily can 100% does not have the mistake

These rules are complicated and in huge volume. Sometimes it is not 100% garanteed that mistakes will not be made eventhough all rules have been understood.