I tore the letter up and threw it away.我把信撕碎扔掉了。

They offered to tear up his old contract [=get rid of his old contract] and give him a new one.他们主动提出废除与他的旧合同，并和他签一份新合同。

The burglars tore the house up. [=made a mess in the house]窃贼把房子翻了个底朝天。

The city tore the street up to fix a broken water main.市政府把这条街的路面打开以便修好破裂的总水管。

They tore up 20 acres of forest and built a new shopping mall.他们毁掉20英亩的森林，建了一座大型购物中心。

They were tearing up the dance floor. [=they were dancing in very skillful, energetic, and impressive way]他们在舞池里翩翩起舞。

He tore up the league last season.上一赛季他在联赛中表现出色。