First, the substantial increase in testing means that more cases will be detected.

首先，检测的大幅增加意味着将发现更多的病例。

In engineering, " testing" means trying out an idea to see if it solves the problem.

在工程中，“测试”意味着尝试一个想法，看看它是否能解决问题。

A lack of robust testing means that several communities are likely to be unaware of the level of lead in their water.

缺乏可靠的测试意味着一些社区可能不知道水中的铅含量。