abide by 與 comply with 都有「遵守」的意思．但是當主語是「人」時，英譯「遵守」須用 abide by。當主語是非人稱時，則用 comply with 英譯「遵守」。
例 3：雙方都應遵守/雙方的一切活動都應遵守合同規定。
Both parties Shall abide by/All the activities of both parties shall comply with the contractual stipulations.
2.3 change A to B 與 change A into B
英譯「把 A 改為 B」用「change A to B」，英譯「把 A 摺合成/兌換成 B」用「change A into B」，兩者不可混淆。
例 4：交貨期改為 8 月並將美元摺合成人民幣。
Both parties agree that change the time of shipment to August and change US dollar into Renminbi.
2.4 ex 與 per
源自拉丁語的介詞 ex 與 per 有各自不同的含義。英譯由某輪船「運來」的貨物時用 ex，由某輪船「運走」的貨物用 Per，而由某輪船「承運」用 by。
例 5：由「維多利亞」輪運走/運來/承運的最後一批貨將於 10 月 1 日抵達倫敦。
The last batch per/ex/by S.S. "Victoria" will arrive at London on October (S.S. = Steamship)
2.5 in 與 after
當英譯「多少天之後」的時間時，往往是指「多少天之後」的確切的一天，所以必須用介詞 in，而不能用 after，因為介詞 after 指的是「多少天之後」的不確切的任何一天。
例 6：該貨於 11 月 10 日由「東風」輪運出，41 天後抵達鹿特丹港。
The good shall be shipped per M.V. "Dong Feng" on November 10 and are due to arrive at Rottedaml in 140 days. (M.V.= motor vessel)
2.6 on/upon 與 after
當英譯「……到后，就……」時，用介詞 on/upon，而不用 after，因為 after 表示「之後」的時間不明確。
例 7：發票貨值須貨到付給。
The invoice value is to be paid on/upon arrival of the goods.
例 8：賣方須在 6 月 15 日前將貨交給買方。
The vendor shall deliver the goods to the vendee by June 15.(or: before June 16，說明含 6 月 15 日在內。如果不含 6 月 15 日,就譯為 by June 14 或者 before June 15。)
例 9：如果上述貨物對船舶和（或）船上其它貨物造成任何損害，託運人應負全責。
The shipper shall be liable for all damage caused by such goods to the ship and/or cargo on buard.
3.1.2 by and between
常用 by and between 強調合同是由「雙方」簽訂的，因此雙方必須嚴格履行合同所賦於的責任。
例 10：買賣雙方同意按下述條款購買出售下列商品並簽訂本合同。
This Contract is made by and between the Buyer and the Seller, whereby the Buyer agrees to buy and the Seller agrees to sell the undermentioned commodity subject to the terms and conditions stipulated below.
例 11；自 9 月 2O 日起，甲方已無權接受任何定單或收據。
Party Ashall be unauthorized to accept any orders or to collect any account on and after September 20.
例 12：我公司的條件是，3 個月內，即不得晚於 5 月 1 日，支付現金。
Our terms are cash within three months, i.e. on or before May 1.
3.2.2 not(no)later than
用「not (no) later than +日期」英譯「不遲於某月某日」。
例 13：本合同簽字之日一個月內，即不遲於 12 月 15 日，你方須將貨物裝船。
Party B shall ship the goods within one month of the date of signing this Contract, i.e. not later than December 15.
3.2.3 include 的相應形式
常用 include 的相應形式：inclusive、including 和 included，來限定含當日在內的時間。
例 14：本證在北京議付，有效期至 1 月 1 日。
This credit expires till January 1(inclusive) for negotiation in Beijing. (or:This credit expires till and including January 1 for negotiation in Beijing.) 如果不包括 1 月 1 日在內，英譯為 till and not including January 1。