| 2 prerequisite; presupposition: |
| | 必要的前提 essential prerequisite |
| | 矛盾的一方各以其另一方为自己存在的前提。 Each aspect of a contradiction presupposes the existence of the other aspect. |
| | 这个问题的政治解决必须以撤出外国军队为前提。 A political settlement of this question must be predicated on the withdrawal of foreign forces. |