Mr Cook said future aggressors would be able to act with impunity if the objectives of the UN weren't met.

库克先生说如果联合国的目标无法达成,那么将来的侵略者就可能会逃脱惩罚。

These gangs operate with apparent impunity.

这些团伙明目张胆地活动,却不受任何惩罚。