必须在它的位置上放一根新绳子。
每根松木支架都必须每三天更换一次。
每条XML消息必须拥有一个根。
比如，XML文档必须有且只有一个根元素。
For example, an XML document may have one, and only one, root element.
根文件系统必须包括支持一个完全的Linux系统所需的全部内容。
The root filesystem must contain everything needed to support a full Linux system.
因此，创建 Document时，必须给它传递一个根元素。
Therefore, you must pass it a root element when you create it.
接下来，必须指定Pluto的上下文根，如清单5所示。
Next, you must specify Pluto's context root, as shown in Listing 5.
我们必须用一根木柱子撑住屋顶。
注意，您必须是超级用户(根用户)才能调低优先级值。
Note that you usually need to be the superuser (root) to specify negative priority adjustments.
盖昂说，每一个申根国家必须承担自己的职责。
Every country in Schengen had to bear its responsibilities, he said.
如果应用程序必须作为根用户运行，应该考虑替代解决方案。
If an application must run as root, consider an alternate solution.
如果要夹起一样东西，必须有两根筷子才行。
You need two chopsticks if you're going to pick up anything.
必须有一个确定的根元素。
我必须重新做两根轮辐和一个轮毂。
姜根在加入煮沸的果酱中前必须碾碎后喂小孩子吃。
The root ginger should be crushed up before it is added to the boiling jam.
根和叶的生长速度必须大体相同。
我的电池没电了，所以必须从邻居那里接根线启动。
My battery was dead so I had to get a jump start from my neighbor.
分部类必须派生自支持根元素的类型。
The partial class must derive from the type that backs the root element.
这些茁壮成长的小树为什么必须成为一根强硬的要棍呢？
也许有一个金属圈必须套在一根管子上。
Perhaps there is a metal ring, and the ring has to go on a tube.
也许有一个金属圈必须套在一根管子上。
Perhaps there is a metal ring, and the ring has to go on a tube.
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