帮下忙.
问题描述：
帮下忙.
i will send someone to deliver the present
还有问下 that's not the key to the door.
要改成 of 怎么改?this key is not of the door?
答
我派了一个人去送那件礼物
key to the door是固定的,
什么什么的钥匙都说key to the XXX,不用key of XX