1、You have a contractual obligation to finish the building this month
你受合同的約束，要在本月完成這項建筑。

2、But we cannot ignore the contractual obligation of the architect.
但不能因此而忽視對建筑師的約定義務(wù)。

3、He is under no contractual obligation to buy.
他沒有合同上的購買權(quán)利。

4、You have a contractual obligation to finish the building this month.
你受合同的約束，要在本月完成這項建筑。

5、You have a contractual obligation to finish the school building this week
＂按合同規(guī)定，貴公司應(yīng)在本周內(nèi)完成這幢教學(xué)大樓的工程。＂

6、You have a contractual obligation to finish the school building this week.
＂按合同規(guī)定，貴公司應(yīng)在本周內(nèi)完成這幢教學(xué)大樓的工程。＂

contractual obligation翻譯