单词
backup
读音
ˈbækʌp
美式
英式
词根
"Backup"是一个复合词，由动词 "back"（后退，支持）和预词 "up"（上升，提高）合成。这两个词在这里并没有常规意义，而是共同形成了一个新的概念，即“备份”或“后援”。
释义
n. 支持；后援；阻塞 adj. 支持的；候补的 vt. 做备份
例句
You should make a copy of the disk as a backup.
你应该将磁盘复制一个备份。
If that happens, the grasshopper has a backup defense.
如果发生这种情况，蚱蜢就有了后备防御。
In areas where the wind dies down, backup electricity from a utility company or from an energy storage system becomes necessary.
在风能不稳定的一些地区，需要供电事业公司或者能量储存系统来提供备用电能。
You should make a copy of the disk as a backup.
你应该将磁盘复制一个备份。
If that happens, the grasshopper has a backup defense.
如果发生这种情况，蚱蜢就有了后备防御。
In areas where the wind dies down, backup electricity from a utility company or from an energy storage system becomes necessary.
在风能不稳定的一些地区，需要供电事业公司或者能量储存系统来提供备用电能。
强化记忆
你可以想象 "back up" 为 "back it up"，也就是把东西向后移（做备份），或者有人在你的背后支持你（支援）。这种视觉化技巧可以帮助记住 "backup"的含义。"Backup"这个词的概念源于保护和安全性的需求，在计算机技术迅速发展和日常生活中都有着广泛应用。
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and they have to think of resources very carefullyand build backup systemsand redundancies, flexibility and diversity.
"Thanks for all the memories, computer, but I don't need you anymore,I've got a backup now."That defeats the whole purpose.
And just in case he did,I built a backup plan,by reading the "Left Behind" books that were all the rage at the time.
yeah, we need to save humanityand have a backup plan,but also we need to inspire humanity,
But then why aren't these tradtional power plantsjust used as a backup,instead of us humans depending on them
所属分类
大学,出国,专四专八,程序员,其他
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