动词短语
中文翻译：Unknown
同义词：
['place under control', 'place under surveillance']
例句：
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1. The companyhas placed the new product under strict quality control.
该公司已将新产品置于严格的质量控制之下。
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2. The police placed the suspect under arrest.
警方将嫌疑人逮捕。
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3. The scientist placed the sample under a microscope to observe its structure.
科学家将样本置于显微镜下以观察其结构。