名词
中文翻译：Unknown
同义词：
['test sample', 'test specimen']
例句：
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1. The scientists conducted an assay to determine the effectiveness of the new drug.
科学家们进行了一项试验，以确定新药的有效性。
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2. The company sent a sample of its new product for testing in different markets.
该公司向不同市场发送了新产品的样本进行测试。
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3. The researcher collected various samples from the forest to analyze their chemical composition.
研究者从森林中收集了各种样本，以分析它们的化学成分。