Don't you dare tear up her ticket.

你竟敢撕坏她的票。

The phrasal verb 'tear up' is separable because you can say 'She tore the letter up' or 'She tore up the letter'.

* tear up 是可以分开的短语动词，因为既可以说 She tore the letter up ，又可以说 She tore up the letter。

When this happens, they will tear up the contract.

如果这事发生，他们将会违约。

To tear up in a toothed machine.

在有齿的机器上拆碎布或。

Suddenly my eyes tear up.

我的眼里突然涌起了泪水。