He was a veteran close with Trump, which Israeli voters appreciated, a known quantity in Washington.

他是与特朗普关系密切的老兵，以色列选民对此表示赞赏，这在华盛顿是众所周知的事情。

So, really, the best way to conquer the fear of the unknown is to make the test as much of a known quantity as possible.

因此，战胜此种恐惧的最好办法，其实就是尽可能地让测试成为已知量。