make good

You’d need the landlord’s written consent, because a device fixed to the wall is a modification. A removable one is fine, but you must make good when you leave.

您需要取得房东的书面同意，因为固定在墙上的设备算作对房屋的改动。可拆装的那种没问题，但退租时您必须恢复原状。