A contract has the capability of binding people to a common purpose.契约具有使人们达到共同目的的约束力。We shared a common purpose. 我们有着共同的目标。We were all united by a common purpose.我们所有人为了共同的目标团结在一起。It's time to put our differences by and work together for a common purpose.现在已是抛弃我们之间的分歧并为一个共同目的而工作的时候了。