1. I enclose the bottom copy with my countersignature. 随函敬附已连署的合约副本。
2. We return one copy of the contract with our countersignature for your file. 我们退回一份我们已会签的合同供你方存档。
3. We now await your sending of the original contract signed4 by you for our countersignature. 现在我们在等你们签完原始合同后寄给我们回签。
4. That is, a signature can be signed, which forms a countersignature, but that countersignature cannot be signed again. 也就是说，可以对签名进行签名，形成一个副署，但不能再对该副署进行签名。
5. The contract will be taken effect once both parties' countersignature. During the period of execution, any of party can not amend or cancel the contract at random. 本合同自双方签字之日起生效，合同执行期内，甲乙双方均不得随意变更或解除合同。
