如何使用 "countersign" 造句

1. Would you please countersign them here ?
请你在这里会签好吗?
2. Could you please countersign your travel 's check .
请你在旅行支票上副署。
3. We are enclosing our sales contract no. 7011 in duplicate , please countersign and return one copy for our file soon .
随函附寄我方7011号销售合同一式两份,请会签并寄回一份供我方存档.
4. The president of the national assembly shall countersign the royal command .
总统,国民议会应副署皇家司令部。
5. Enclosed you will find our sales contract no. 123 in duplicate of which please countersign and return one copy to us for our file .
兹随附我方销售合同123号一式两份请查收,请会签并退回一份以便我方存档.