0 to make it more difficult for something to happen or more difficult for someone to do something -- 妨碍，阻碍；阻止
But they certainly show that grammatical competence does not parallel linguistic performance and that processing tasks impede performance.
The door can be a useful impediment for comic purposes in the sitcom, but it can also impede the movement of the camera.
This fundamental difference impedes the development of an open dialogue, let alone a creative level of understanding.
Perceptual fine-tuning of such stimuli and the formation of representations of social stimuli are impeded.
The powers that previous mayors enjoyed were seriously impeded, and they became powerless to solve citizens' economic and social problems.
These drugs appear to act by impeding semantic organization at encoding.
However, in easier tasks the rivaling articulatory dual task does not impede performance.
The retailers, so they argued, were impeding the government's deflationary policy and were indirectly attacking the buying power of wage-earners.
