名词
中文翻译：沙箱
同义词：
['safety box', 'sandbox']
例句：
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1. The engineer was testing the new software in a SACO to ensure it worked properly.
工程师正在用一个安全箱测试新软件，以确保它正常工作。
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2. The scientist conducted experiments in a SACO to study the effects of radiation onliving organisms.
科学家在一个安全箱内进行实验，研究辐射对活体生物的影响。
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3. The children played games in the SACO while their parents watched from the sidelines.
孩子们在安全箱里玩游戏，而他们的父母则在旁边观看。