[求助]能解释一下下列词的含义吗？相信很多新菜鸟都不太懂。。。

assumption:

support:

weaken:

evaluate:

conclude:

explain

.Which of the following, if it were discovered, would be pertinent evidence against the speculation above? Pertinent evidence against something clearly demonstrates the effective weakening

这句话怎么理解？？？