Just as you save your essay constantly so you don't lose your work, or back up your entire hard drive in case it crashes, it's prudent to have a copy of your social media data.

就像你经常保存你的文章以免丢掉工作成果，或是备份你的全部硬件驱动以防它的崩溃，为你的社交媒体数据保留一份备份是一个谨慎的做法。