设x为a加b之和。
Can the value of y be predicted from the value of x?
能从x值推知y值吗？
The equation is impossible for any value of x greater than 2.
当x的值大于2时，这个等式不成立。
He had to have his chest X-rayed.
他得进行胸部X光检查。
She was advised to have an abdominal X-ray.
她被建议拍个腹部X光片。
It will only register on sophisticated X-ray equipment.
只有在先进的X光设备上它才会显示出来。
The doctor studied the X-rays of her lungs.
医生研究了她肺部的X光照片。
A clerk had slipped the wrong tab on Tony's X-ray.
一位职员失手把一个错误的标签贴到了托尼的X光片上。
I suggested that he rest, and sent him for an X-ray.
我建议他休息，并叫他去作一次X光检查。
All hand baggage would be x-rayed.
所有手提行李都要拍X光片。
X标出了所说的地点。
我得去做X光检查。
Let's suppose X knows what Y is doing.
假设X知道Y正在干什么。
X and Y in the equation are both unknowns.
等式中的X和Y都是未知数。
The X-ray showed there was no break in his leg.
X光照片显示他的腿没有骨折。
因此，X随时间变化而变化。
这是y，这是x。
让我们做个X光检查吧。
我需要进行X光检查。
医生，这是我的X光片。
你应该进行X光检查。
安迪，你需要进行X光检查。
大夫，我需要进行X光检查吗？
They can't tell till they X-ray.
在使用X光检查之前，他们还不能判断。
我们需要对你进行X光检查。
He had two X-ray burns on the back.
他背上有两处地方被X射线灼伤。
How do I get to the X-ray room?
请问怎么去X光室呢？
He should see a dentist and get an X-ray.
他应该去看牙医并进行X光检查。
They use X-ray to see the inside of the animals.
他们用X光来透视动物的身体内部。
这个X是做什么的？
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