impede造句
It was intended to
impede the apprehension of the person.
它旨在妨碍对该人的拘押的.
They also
impede backmixing of sand.
同时也可防止砂子的返混.
At no time did I make an attempt to
impede any investigatory effort.
我绝没有试图妨碍过任何调查工作。
Severe steric effects at the reactive carbon would
impede the substitution.
大的立体效应阻止在碳上的取代.