He got two flunks on his report.

他的报告上有两门不及格。

One naturally wants for things to go well, but if an obdurate pupil flunks trigonometry, it is - at base - their problem.

他们自然希望事情顺利，但是如果一个差生在三角学上挂了科，从根本上说，那是他们自己的问题。

Even recent memory protection techniques like segmentation, paging, protection keys and simulated segmentation flunks to assure data integrity.

即使是近期的内存保护技术，例如数据分割、分页、保护秘钥和模拟分割都无法确保数据的完整性。