英语翻译版权买卖合同里的一句话,前面说“出版者应该自己承担出版的风险及费用,并应该在合同签订18个月以内出版出版者版本”

可以译作：
with the exception of personal reasons of the copyright owner
或者
with the exclusion of (personal) reasons of the copyright owner
以上译文显得正式些
也可以译作：
except/other than personal reasons of the copyright owne