qiān / hé / tóng / zhī / qián / wǒ / men / xiān / yuē / fǎ / sān / zhāng / míng / què / shuāng / fāng / de / zé / rèn

签合同之前，我们先约法三章，明确双方的责任。

Before signing the contract, we first set three basic rules and clarified both parties' responsibilities.