But it does happen that emotional-- that this sort of empathy does lead to moral concern and action.
但事实是,这种痛苦-,这种移情作用确实会让我们,从道德上关心和关怀别人。
The fact that you don't need a force for it to move forever at a given speed in a given direction, that's not obvious, because in daily life you don't see that.
对于物体不需要力的作用就能保持,确定的速度和方向持续运动这一事实,它并非显而易见,因为在日常生活中你看不到这种情况
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