求翻译：6.在租赁期间未经甲方允许不得随意改变房屋结构,若需装修,须经甲方同意后方可动工装修所有费用由乙方支付,乙方迁出时装修完好的未经甲方同意不准随意拆除.是什么意思？

6 Party to allow the lease period without changing the housing structures are not free, For decoration, subject to Party A agrees to commence only after all the renovation costs paid by Party B, Party B to move out without the consent of Party decoration is not well- quasi-free removal.

6. In the lease period allowed without a party shall not be arbitrarily changed the housing structure, if required, shall be furnished by the party could start only with the consent decoration all costs paid by Party B, Party B move out of decoration is intact without a Party will not be allowed to

6. in rents the period without the party of the first part allows not to have to change the building frame at will, if must repair, must pass through the party of the first part rear area to agree movable labor repair all expenses pay by the second party, the second party transfers out when repairs

6. during the leasing period without the owner permission shall not be arbitrarily changing the housing structure, if needs the decoration shall be subject to approval before party a could start in the decoration of all fees paid by the party b, party decoration intact when moved out without party c

6. in rents the period without the party of the first part allows not to have to change the building frame at will, if must repair, must pass through the party of the first part rear area to agree movable labor repair all expenses pay by the second party, the second party transfers out when repairs