Its body,and the bones of the pig, slowly sink into the sticky black hole.

VOA: special.2010.04.07

Our vehicles sink into wet roads and crush dry roads because they are too big and heavy.

我们的车子因为笨重,陷入泥路中，在干道路上被压碎。

普林斯顿公开课 - 国际座谈会课程节选

so you can't build really high or the buildings will just sink into the ground.

所以你不能把楼建得很高，否则建筑物会下沉到地里。

德克萨斯美女 - SpeakingMax英语口语达人