zhèyàng dì yī gè yuè zhàngdān chūlái shí zhīdào nǎxiē fèiyòng shì zìjǐ rùzhù hòu chǎnshēng de

这样第一个月账单出来时，知道哪些费用是自己入住后产生的。

This way, when the first month's bill arrives, you'll know which charges were incurred after you moved in.