因此，不要留下缺少保护的后门。

So, don't leave the metaphorical gate lightly guarded.

youdao

Mac OS早期版本缺少保护储存器，这意味着当一个程序崩溃，Mac也会崩溃。

Prior versions of the Mac OS lacked protected memory, which meant that when one app crashed, the Mac itself usually crashed.

youdao

世界上有趣和古老的遗址若是缺少保护，就很容易因世界变迁而被摧毁殆尽。

Without someone protecting the world's interesting and ancient sites, they could easily be swept away by the changing world.

youdao