签订 qiāndìng to agree to and sign (a treaty etc)
怎么记住“签订”: 签 to sign + 订 make an order = to agree to and sign (a treaty etc).
汉字
用法
- To conclude and sign (a formal agreement) - 签订合同 (qiāndìng hétong) sign a contract; 签订协议 sign an agreement.
- Specifically for treaties, contracts, agreements between parties. It bundles 'agree to + sign'; you don't 签订 an autograph. Formal business/legal register.