2、lament v.感到悲痛 n.悲叹
Rather than lament the lack of a cure, he wants to help find one.

3、censure n.责难 v.指责
Students may fail a course or be given a letter of censure.

4、depot n.停车场，仓库
Teams are on their way to the taxi depot.

5、credulous adj.轻信的
I think Gray is actually a little bit too credulous, too beliving in the claims that have been made about the abilities of the animals.