它是与等值面相切的,对不对?
另一种方法是,函数值不变的方向是,是与等值面相切的方向。
The other way to think about it, the direction in which the value doesn't change is a direction that's tangent to the level surface.
事实上,语用学与等值翻译在交际框架下存在着千丝万缕的关系。
In fact, pragmatics and equivalence translation have myriad ties in the framework of communication.
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