random check

例句：

1. 1. The company conducted arandom check on the quality of its products.
   该公司对产品的质量进行了随机检查。
2. 2. Duringthe inspection, they found several defects inthe product.
   在检查过程中，他们发现产品有几个缺陷。
3. 3. Theinspector carefully reviewed thedocuments to ensure compliance with regulations.
   检查员仔细审查了文件，以确保符合规定。