“定”和“订”这两个词的用法,有时界限明确,有时区别不明显,有时也可通用。正因此,报刊上使用这两个词比较混乱,甚至一篇文章中前后就不统一,自相矛盾。“定”在表示决定、确定、规定的意思时,和“订”没有联系;当“定”表示约定、制定意思时,和“订”的关系就密切了,有时还可通用。“订”表示经过研究商订而立下条约、契约、计划、章程等;还表示预先 The usage of the two terms “definite” and “fixed” is sometimes clearly defined, sometimes inconspicuous, sometimes universal. Because of this, the use of these two terms in newspapers and periodicals is rather confusing, and even an article is inconsistent and contradictory. “Ding” has no connection with “Order” when it means deciding, confirming, and stipulating the meaning. When “Ding” means agreement and formulation of meaning, the relationship with “Order” is close and sometimes common. “Booked” means to make a treaty, contract, plan, charter, etc. after research and negotiation;