trade mark infringement

例句：

1. 1.The company's trademark is being used without permission, which constitutes trademark infringement.
   该公司未经授权使用其商标，这构成了商标侵权。
2. 2. Trademark infringement is a serious issue that can lead to legal action and financial penalties.
   商标侵权是一个严重的问题是，它可能导致法律行动和财务处罚。
3. 3. Companies must comply with the law when using their trademarks, as trademark infringement can damage their reputation.
   公司在使用他们的商标时必须遵守法律，因为商标侵权会损害他们的声誉。