| 定理 | ding4 li3 | (math.) theorem |
| 规矩 | gui1 ju3 | customs |
| 悠久 | you1 jiu3 | established |
| 立足 | li4 zu2 | to stand |
| 租界 | zu1 jie4 | concession |
| 董仲舒 | dong3 zhong4 shu1 | Dong Zhongshu (179-104 BC), philosopher influential in establishing Confucianism as the established system of values of former Han dynasty |
| 曹魏 | cao2 wei4 | Cao Wei, the most powerful of the Three Kingdoms, established as a dynasty in 220 by Cao Pi 曹丕, son of Cao Cao, replaced by Jin dynasty in 265 |
| 定规 | ding4 gui1 | established rule or practice |
| 建于 | jian4 yu2 | established in |
| 外企 | wai4 qi3 | foreign firm |
| 成规 | cheng2 gui1 | the beaten track |
| 积弊 | ji1 bi4 | age-old (malpractice) |
| 制定的 | zhi4 ding4 de5 | established |