object evidence

例句：

1. 1. The police collected several pieces of object evidence to support their case.
   警方收集了几件物证来支持他们的案件。
2. 2.The lawyer presented several pieces of evidence as proof of the defendant's guilt.
   律师出示了几份证据作为证明被告有罪的依据。
3. 3.The scientist conducted an experiment to gather more object evidence for their research.
   科学家进行了一个实验，以获取更多物证来进行他们的研究。