书面批准

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除非签下了书面的权利保证书，否则不要改变客人电脑的配置或设置。

除非事先有出租人的书面许可，承租人不得把该房再出租给其他任何人。

bad debt written off【会计】;write-off bad debt【会计】;write-off uncollectible account【会计】

written confirmation

written statement

written consent

bad debts written off

initial written proposal

written contract

written in water