翻译87-91答案：

87. Ourefforts will pay off if the results of the research can be applied to the exploration of new technology.（能应用于新技术的开发）

88. I can’t boot my computer now. Something must be out of order （一定出了毛病）with its operating system.

89. Leaving one’s job, no matter what/whatever it is, （无论是什么工作）is a difficult change,
even for those who look forward to retiring.

90. Compared with the place in which/where I grew up, （与我成长的地方相比）this town is more prosperous and exciting.

91. Not until he had finished themission（直到他完成使命）did he realize that he was seriously ill.