该付款必须有抵押人的会签.用英语怎么说？

该付款必须有抵押人的会签.

The payment has to countersigned by the mortgagor.

the

art. 指已提到的人（物），指说话人与听者已知的人（物），用于独一无二的事物前，与形容词最高级和序数词连用；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

payment

n. 付款，支付，报酬，报答，偿还，惩罚，报应；

例句
These returns will not be enough to meet the payment of annual bonuses to policyholders.
这些收益不够支付投保人每年分得的红利。

has

v. 有( have的第三人称单数 )，（亲属关系中）接受，拿，买到；

例句
...the operation a patient has had.
病人做过的手术

to

prep. 向，朝着，到，关于，属于；adv. 朝一个方向的，到某种状态，关闭；

例句
I suggest you leave it to an expert...
我建议你把它留给专家来解决。

countersigned

v. <术>连署，副署，会签 （文件）( countersign的过去式 )；

例句
The payment has to countersigned by the mortgagor.
该付款必须有抵押人的会签.

by

prep. 在…旁边，表示方式，由于，经过；adv. 经过，表示保留或保存时用，短暂拜访；

例句
...expensive make-up that we saw being advertised by a beautiful model...
我们所见的由一位漂亮模特代言的昂贵化妆品

mortgagor

n. 抵押人；

例句
In practice the mortgagor will usually remain in possession of the property.
实践中抵押人通常仍保留着对财产的占有.