1. Likewise, it's pointless to write data in memory to a file. 同样地，将数据通过内存写入到文件也是无意义的。
2. However, it is painful and pointless to fixate on a period that cannot be relieved or repaired. 然而，留恋在一段无法解脱、无法修正的时期上，是痛苦的，也是毫无意义的。
3. In my 25 years of environmental campaigning I have seen lots of inspired protests and lots of daft or pointless ones. 在我25年的环保运动中我见过很多充满激情的抗议，也看到过很多愚蠢的不得要领的行动。
英英解释
adj.
1. not having a point especially a sharp point
2. serving no useful purpose; having no excuse for being
3. lacking import
