The tumor infiltrated into the pericardium, causing a tear in the outer muscle of the heart.

肿瘤浸润到了心包膜，导致在心肌外的一个破损。

The quick answer - organized crime gangs, cartels. They're growing in numbers and infiltrating more into politics.

简单来说，这是有组织的犯罪团伙，即卡特尔所为。这些团伙的成员人数在不断增加，同时越来越多地渗透到政治中去。

The Indian culture has infiltrated into our literature, into our painting, into our habits, into our folklore.

印第安文化渗透了我们的文学、绘画、生活习惯以及民间传说。