いったん非公式に合意に達したからには、相手と契約を始めるべきだ。の英語

Once you have reached informal agreement, you should enter into a contract with the other party.

They wanted to negotiate the contract on equal terms.

a private contract

We joined hands on the understanding that we should separate at any time by the desire of either party.

The contract is in the bag, so let's go out and celebrate.

We were tied to our decision because we signed the contract.

Consultation is required when sealing a contract.

No ambiguities are allowed in a contract.

Consultation is required when doing a contract.

Agreements for that unit shall be made between the supplier and user.

enter into a bond with a foreign‐affiliated firm

I cannot calculate the final cost until I talk with our contractors.

the expression of one's intention to conclude a contract to the person of the opposite side

a formal termination (of a relationship or a judicial proceeding etc)

“A bargain is a bargain.”【イディオム・格言的】

They covenanted that they would sell only to certain buyers.

They want to think about the contract beforehand.

I don't know if that contract content is the same or different.

The contract has been fulfilled on my part, but not on the other part―by the other party.

confer with another in order to come to terms or reach an agreement

an informal agreement to work together

We have already been in an agency agreement with another company.

a factual statement made by one party in order to induce another party to enter into a contract

Please leave that contract as is.

Since there was a problem in the contract itself, it was treated as an invalid contract.

The company won the contract through a lot of tough negotiating.

an agreement between parties (usually arrived at after discussion) fixing obligations of each

There is nothing I can do but make that agreement.

a contract that depends on chance, called an aleatory contract

Because of the contract, he is bound to deliver them.