The authorities say they are taking tough action against such illegal practices.

当局称正对此类犯罪行为采取强硬手段。

An occasional offer of food from a park visitor, an illegal and dangerous practice, makes beggars of them.

公园游客偶尔会做出危险且违法的行为，向熊提供食物，而这让熊学会乞食。

A. By getting illegal practices under control.

A. 通过控制非法行为。

But illegal practices persist even here.

但即使在这里，非法行为仍然存在。

After many years of turning a blind eye to this illegal practice, a desperately broke Greek government is at last cracking down.

在多年对这些违法行为睁一只眼闭一只眼后，濒临破产的希腊政府做出严厉打击此类行为的动作。

Newspaper reports from Germany said the embattled Volkswagen company was warned some time ago that illegal practices were being used to falsify emissions tests of its diesel cars.

来自德国的报纸报道称，陷入围困的大众公司此前曾受到警告，他们使用非法行为欺诈柴油汽车尾气排放检测结果。