In order for a chemical to be considered a drug, it must have the capacity to affect how the body works.
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。
It is a truly delightful place, which looks the same as it must have done 100 years ago with its winding streets and pretty cottages.
这真是一个令人愉快的地方，它一百年前一定和现在看起来一样，有蜿蜒的街道和漂亮的小屋。
It must have galled him that Nick thwarted each of these measures.
尼克对每一个措施都加以阻挠，这一定激怒了他。
I felt sorry for him and his colleagues – it must have been so frustrating for them.
我很同情他和他的同事们–这对他们来说肯定是非常令人沮丧。
It is strange to think that he held strong views on many things, but it must have been so.
想到当时他对许多事情的观点都很强硬，真是很奇怪，但那时应该就是这样。
It must have got into the dough by mistake.
它一定是不小心掉进面团里了。
Steam engines were used to pull the carriages and it must have been fairly unpleasant for the passsengers, with all the smoke and noise.
当时人们用蒸汽机来拉车，烟雾弥漫，噪音嘈杂，乘客肯定相当不舒服。
It must have been a custard tart early on, and it has spread around the world.
肯定是很早就有奶油蛋挞，然后在世界各地广为流传。
"It must have been that," said the King, "unless it was written to nobody, which isn't usual, you know."
“一定是那样，”国王说，“你知道的，除非它不是写给任何人的，这是不寻常的。”
It's a sculpture carved from the tusk of a mammoth—it must have been towards the end of the tusk, because it's slim, slightly curved.
这是一件用猛犸象的象牙雕刻而成的雕塑——肯定是象牙接近尾端的部分，因为其形状纤细、略呈弧形。
This is the first time that a structural difference has been found between the brains of women and men and it must have some significance.
这是第一次在女性和男性的大脑中发现结构上的差异，而且这一定有某种意义。
The areas covered by this material were so vast that the ice that deposited it must have been a continental glacier larger than Greenland or Antarctica.
这种物质覆盖的区域十分巨大，因此使其沉积下来的冰一定是比格陵兰岛或南极洲更大的大陆冰川。
It can be any size, but it must have the same number of rows as columns.
大小可以任意，但是行数和列数一定要一样。
But how uncomfortable it must have been living with these ironwilled folks!
但是同这些具有钢铁般意志的人生活在一起会是多么不舒服啊！
Yes, it must have been, for they are excellent walking-boots - by no means worn out.
不错，一定是的，因为这是很好的走路穿的靴子——一点儿也没有磨破。
If the projection column list contains an expression, it must have a valid column alias.
如果projection列列表包含一个表达式，它必须拥有一个有效的列别名。
I can't remember how many times [they gave me shocks], but it must have been dozens.
我记不得他们给我多少次(电击)，但一定有几十次。
At the very least, it must have a well-defined roadmap toward a stable and mature version.
至少，它必须具有定义良好的路线图，以过渡到稳定成熟的版本。
It must have been an eerily haunting scene to behold them marching across that open field.
凝视着南方邦联大军跨过那空旷的田野向北挺进，这个场面必然是十分可怕而又不易忘怀的。
It must have been remarkable to see devastating diseases alleviated with common foodstuffs.
对人类影响巨大的疾病能通过普通的食物来减缓病情，这种意义实在是非同凡响。
It must have been confusing to remember the life of a grown woman when she was only a child.
当他还是一个十岁的小女孩的时候，却回忆起了一个成年女子的生活，这真是令人费解。
For an EJB module to be installed and run in V4, it must have new deployment code generated.
对于要在V4下安装并运行的EJB模块，它必须生成新的部署代码。
It must have a partition formatted as a primary partition of type 0x41 (PReP boot) bootable.
必须有一个分区格式化为0x41 (PRePBoot)可引导类型的主分区。
“We've been saying for ages that it must have peaked, but it keeps going up, ” says Dr Ezzati.
“我们多少年来一直说的是肥胖率已经到达顶峰了，但是它还是一直攀升着。” 伊扎提博士说到。
It was here, it must have moved! The GPS and you were right, but I am to proud to tell you this.
全球定位系统和你都是对的，但是我不想告诉你这一点。
It must have found high ground, waited there as the water rose, then set off again, driven by hunger.
它一定找到了一块高地，一直等在那儿直到水又涨起来，再把它冲走，随即陷入饥饿。
That's so basic, it must have happened a million times and that's the basic idea of the stock market.
这是很基础的概念，早已屡见不鲜，而这就是股票市场的最初思想。
It must have, but reining in such a profligate program that subsidizes idleness is an idea that makes sense.
一定会的，但是控制这样一个为失业补贴的浪费项目是有意义的。
It must have, but reining in such a profligate program that subsidizes idleness is an idea that makes sense.
一定会的，但是控制这样一个为失业补贴的浪费项目是有意义的。
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