它必须保持清醒以呼吸和注意危险。
它必须在沸腾状态下至少煮三分钟。
它必须长时间在非常低的温度下运行。
It'll have to operate for long periods of time in very cold temperatures.
它必须被广为流传才能提供大量的信息。
It must be widespread enough to provide plenty of information.
它必须及时前进。
"要想成为建筑物，它必须与各种元素有效地协调在一起。
To be architecture, a building must achieve a working harmony with a variety of elements.
“一个字就是一个影子。”影子说，是因为它必须这样说。
"A word is a shadow, "said the shadow, and as such it must speak.
为了使一种化学物质被认为是一种药物，它必须具有影响人体运作的能力。
In order for a chemical to be considered a drug, it must have the capacity to affect how the body works.
但在剩下的时间里，尽管癌症的风险在临终时增加，它必须与其他因素，如剩余寿命平衡。
But for the remainder, the risk of cancer, while increased at the end of life, must be balanced with other factors like remaining life expectancy.
在剩下的时间里，尽管癌症的风险在临终时增加，它必须与其他因素平衡，如剩余预期寿命。
For the remainder, the risk of cancer, while increased at the end of life, must be balanced with other factors like remaining life expectancy.
它必须等待这个州的最终批准。
彼得回答说：“因为它必须这样。”
它必须报道发生在特定地区的事情。
它必须和奶酪一起放进他的口袋。
在最终着陆之前，它必须远离沿途像是岩石之类的物体。
It had to move away from the objects in its way such as rocks, before finally touching down.
种植水稻的第一步是准备好土地。它必须是平坦的。
The first step to grow rice is preparing the land. It must be level.
跛脚鸭不高兴，因为它必须帮助别人。
它必须既不太热也不太冷。
它必须是另一个提示请求，这次来自我们的垃圾收集器。
It had to be another tip request, this time from our garbage collector.
如果使用解冻的精液，它必须通过母羊的腹壁直接注入子宫。
If thawed semen is used, it has to be injected directly into the uterus through the ewe's belly wall.
你需要避免在这引入新的东西，它必须总结你之前说的东西。
You need to avoid introducing new stuff here, it's got to sum up what you've said earlier.
我肯定你能认出那张桌子——它还在原来的地方，因为它必须就在门后面。
I'm sure you'll recognise the desk—that's still in the same place, as it has to be just inside the door.
它必须是实用的，所以不要忘记指定诸如参与者有谁、成本、完成顺序等事宜。
It's got to be practical so don't forget to specify things like who would be involved, and the cost, and the order that things would be done in.
如果它有能力取得一些惊人的进步，在另一种意义上，它必须非常努力地奔跑，才能保持原地不动。
If it was capable of some astonishing progress, there was another sense in which it had to run very hard just to stay on the spot.
如果一个交互式计算机屏幕要在实用性上与白板相匹配，它必须在手臂长度范围和横跨房间范围内是可视的。
If an interactive computer screen is to match a whiteboard in usefulness, it must be viewable from arm's length as well as from across a room.
例如，如果一只信鸽要用它的太阳罗盘进行导航，它必须根据日光/黑暗的循环所提供的线索正确设置时间。
For instance, if a homing pigeon is to navigate with its Sun compass, its clock must be properly set by cues provided by the daylight/darkness cycle.
它毕竟是一个简单的球窝关节；它有一定的载荷；它在有限的生命中需要可靠性；它必须包含适合工作环境的材料。
It is after all a simple ball and socket joint; it has certain loads imposed on it; it needs reliability over a defined life; it must contain materials suitable for the working environment.
这告诉了时尚行业，它必须为自己向女性，尤其是少女所发出的信号负责，即她们必须用社会标尺衡量来确定自己的个人价值。
It tells the fashion industry that it must take responsibility for the signal it sends women, especially teenage girls, about the social tape-measure they must use to determine their individual worth.
它必须清晰地定义角色和责任。
反而，它必须从美联储得到钱。
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