It is agreed and understood that otherwise subject to the terms,
exclusions, provisions and conditions contained in the policy or
endorsed thereon and subject to the insured having paid the extra premium,
item c under special exclusion section 1 shall be replaced by the
following wording:
试译：
基于双方同意并了解本保险条约的除外事项、条款，
并在被保险人支付额外保费后，
特别除外事项section 1之下的item c将置换为以下之文字：
以上的理解是对的吗？
又，otherwise在此是什么意思？
否则？除此之外？
好像都不太对。
还请释疑，谢谢。