名词
中文翻译：测试信封
同义词：
['test envelope', 'test envelope', 'test envelope例句：1. The testing envelopewas filled with various samples.（测试信封里装满了各种样本。）2. He carefully opened thetesting envelope and removed the sample.（他小心翼翼地打开了测试信封，取出了样品。）']
例句：
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1. The testing envelopewas filled with various samples.
测试信封里装满了各种样本。
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2. He carefully opened thetesting envelope and removed the sample.
他小心翼翼地打开了测试信封，取出了样品。
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3. Theresults of the testing envelope were announced atthe conference.
测试信封的结果在会议上宣布。