政府发起了一场运动来阻止吸烟。

The government launched a campaign to ___discourage smoking.

频繁的警察巡逻似乎无法阻止盗窃。

Frequent police patrols don't seem to ___discourage thefts.

高税收旨在阻止过度消费。

High taxes are intended to ___discourage excessive consumption.