Apart from grazing, trampling also has a deterrent effect upon weeds at this stage.

除放牧外, 在此阶段让牲畜践踏草地也妨碍杂草生长.

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But the deterrent effect will make it clear to potential law - breakers that crime does not pay.

但是法正、管严肯定有阻吓与抑制的效果.

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The authorities should consider extending interval so that system will have a greater deterrent effect.

当局应考虑把[洗底]期限延长,让记分制可以发挥较大的阻吓力.

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