cover test

英 美
  • 掩蔽试验
  • cover n.封面;盖子;套子;表面v.覆盖;涉及;包含;掩护;给…保险
  • test n.考验;试验;测试vt.试验;测试;接受测验
形容词 covert:
  1. secret or hidden; not openly practiced or engaged in or shown or avowed

  2. (of a wife) being under the protection of her husband