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部屋， へや
1. room, chamber
2. apartment, flat, pad
3. stable
房间；公寓，套房，住所
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を
1. indicates direct object of action
2. indicates subject of causative expression
3. indicates an area traversed
4. indicates time (period) over which action takes place
5. indicates point of departure or separation of action
6. indicates object of d...
表示动作的直接对象；表示经过的场所；表示离开或分开的点
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替える， 換える， 代える， かえる
1. to replace, to convert, to change
2. to exchange, to interchange, to renew
3. to substitute (person, staff member, player, etc.)
代替、转换、改变；交换，互换，更新；替换(人员、工作人员、球员等)