pernicious GREGMAT专八

1.Business may be troublesome,but idleness is pernicious.

事业虽扰人,怠惰害更大。

2.The principle had been pernicious from beginning to end.

这条原则自始至终都是有害的。

3.The pernicious effect of this advertising on children is a problem that we ignore at our peril.

这则广孩子有潜移默化的坏影响，我们置之不理，风险由我们自己来承担。