1. 切忌主客不分或模糊。
例子: Deciding to rescind¹ the earlier estimate, our report was updated to include $40,000 for new equipment. 应改为 Deciding to rescind our earlier estimate, we have updated our report to include $40,000 for new equipment.

2. 单复数不要搞乱，不然会好刺眼，看着不舒服。
例如: An authorized² person must show that they have security clearance³. 应改为 Authorized persons must show that they have security clearance.

3. 结构对称，令人容易理解。
例子: The owner questioned the occupant's lease intentions and the fact that the contract had been altered with ink markings. 应改为: The owner questioned the occupant's lease intentions and ink alterations⁴ of the contract.

4. 动词和主语要呼应。
想想这两个句子的分别: 1. This is one of the public-relations functions that is under-budgeted. 2. This is one of the public-relations functions, which are under-budgeted.

5. 句子不要零碎。
例子: He decided⁵ not to audit⁶ the last ten contracts. Because of our previous objections about compliance⁷. 两个句子应该连在一起：He decided not to audit the last ten contracts because of our previous objections about compliance.

6. 时态和语气不要转换太多。
看商务英语已经是苦事，不要浪费人家的精力啊。

7. 标点要准确。
例如: He did not make repairs, however, he continued to monitor the equipment. 应改为: He did not make repairs; however, he continued to monitor the equipment.

8. 选词正确。
像 affect和effect，operative和operational等 等就要弄清楚才好用啦。

9. 拼字正确。
有电脑拼字检查功能后，就更加不能偷懒。

10. 大小写要注意。
除非 必要不要整个词都大写，除非要骂人。例如: MUST change to OS immediately. 外国人就觉得不礼貌和喝令人一样。要强调的话，用底线，斜字，粗体就可以了。