我们必须知道卡尔什么时候来，这样我们才能给他订个房间。
We must find out when Karl is coming, so we can book a room for him.
你必须知道建造游泳池是很昂贵的，而且通常需要几年的时间来完成。
You must know that pools are expensive to build, and they usually take several years to complete.
你必须知道这些元音都应该加在哪，这使得学习如何阅读变得更加困难。
You have to know where the vowels are supposed to go, and that makes it harder to learn how to read.
他们必须知道并遵守安全规则。
要保存一件物品，必须知道它是如何制作的。
One must know how one object was made in order to preserve it.
要迁移该配置，您必须知道需要迁移什么设置。
To migrate the configuration, you must know what Settings need to be migrated.
当这不可能时，请求者必须知道请求并没有被处理。
When this is not possible, the requester must know that a request has not been processed.
虚拟化系统至少须知道有多少请求正在发送到系统。
At a minimum, a virtualization system must know how many requests are being sent into the system.
为此必须知道文件的正确结构，因此需要一个模式。
To determine that, you need to know the proper structure of the file. So, you need a schema.
您必须知道应用程序在何处如何与安全机制进行交互。
You have to know how and where applications interact with security apparatus.
但要做到这一点，你必须知道地球另一半发生了什么事。
But to do that you'll need to know what's going down halfway across the globe.
作为交易者，如果想赚钱，你必须知道市场下一步怎么走。
To make money as a trader you have to know what the market is going to do next.
至少某些开发和评审代码的人必须知道如何编写安全的程序。
At least some of the people developing and reviewing the code must know how to write secure programs.
在你开启这个平衡生活的旅程之前你必须知道你在寻找什么。
Before you embark on this journey towards balanced living you must know what you are looking for.
调用处理程序类必须知道如何处理所有接口类型的方法调用。
The invocation handler class must know how to deal with method invocations of all the interface types.
但决策者在解决这一问题前，他们必须知道什么地方出了错。
But before policy makers can fix the problem, they have to understand what has gone wrong.
要了解事件发生的精确时间，还必须知道发生此事件的位置。
To know precisely what time an event occurs, it is also important to know the event's location.
摄影师必须知道如何使很宽的广角镜头固有的光学畸变最小化。
The photographer must know how to minimize the inherent optical distortion of a very wide Angle lens.
理想状态是，做决定时，你必须且只须知道那些最相关的事实。
Ideally, when it comes to making a decision, you should know the most relevant facts — and only those.
“规则是用来打破的”，但是你必须知道何时及如何去打破它们。
"Rules are made to be broken", but you have to know when and how to break them.
如果你负责域安全的话，你必须知道什么信息在默认时就是可见的。
If you are responsible for domain security you need to know what information it is possible to see by default.
朱莉：让我们看看你提到的人们保护自己和家人须知的四个步骤。
Julie: Let's go through the four steps you say that people should go through to protect themselves and their families.
这篇文章是《创业前必须知道的五件事情(第一部分)》的续篇。
This article is a continuation of the article "5 Things to Know Before Starting a Business - Part I."
它还必须指定服务提供商所须知道的每一件事情，以成功地执行服务。
It must also specify everything that a service provider must know to successfully implement the service.
我们都必须知道造成交通事故的潜在原因并采取措施防止事故发生。
We must be all aware of the potential causes of traffic accidents and act to prevent them.
每一个个体为了独自确定行动的结果，必须知道其他人的行动会是什么。
Each individual, in order to determine uniquely the consequences of actions, must know what will be the actions of others.
它还必须指定服务提供者为成功执行该服务所必须知道的每一件事情。
It must also specify everything a service provider must know to successfully implement the service.
它还必须指定服务提供者为成功执行该服务所必须知道的每一件事情。
It must also specify everything a service provider must know to successfully implement the service.
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