然而，硬盘驱动器或usb，也可能随时丢失或损坏，所以对于你的数据是否安全你永远不会感到踏实放心。
However, an external hard drive or USB thumb drive can always be lost or damaged so you will never have full peace of mind that your data is really safe.
我觉得，只要他们还能写信、还有邮票，这书就绝不了，所以你最好把所有的邮票也买断，那就踏实了。
I see that it will never be better as long as they have letters and stamps, wherefore you were best to buy the stamps too, and so you shall be sure.
她是一个非常脚踏实地的人，所以不会迷信，但她却贴身保留着两个小的吉祥物。
She was much too down-to-earth to be superstitious, but two little totems she kept close.
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