This is Jack's shirt

杰克衫───Jack's shirt;这个───this

Jack's plaid shirt didn't mix well with his striped trousers.───杰克的方格衬衫与条纹长裤不相配。

In jack's room, he found a secret: when first meeting their through the shirt was neatly set in the same clothes hung up.───在杰克的房间里，他发现了一个秘密：初识时他们各自穿过的衬衫被整齐地套在了同一个衣挂上。

The colour of Jack's shirt is the same as mine.───杰克的衬衫和我的颜色一样。