本合同应以英文写成，一式四份，双方各持两份。

This Contract shall be written in English in four copies. Each party shall keep two copies.

youdao

本合同自签署之日生效,甲乙双方各执一份参照.

This contract is effective after both parties making their signatives, each party keeps one copy for reference.

youdao

本合同一式两份，双方各执一份，合同自签定之日起生效。

This contract is in duplicate, both sides each hold one copy, the contract shall come into force as of the signing date.

youdao