以X开头的单词有X-axis、Xchomosome、Xmas、X-ray 、xylophone、Xenon、X-frame、Xerox。
It will only register on sophisticated X-ray equipment
只有精密的X射线仪器才能显示出来。
The benefit of an x-ray far outweighs the minutely increased risk of cancer.
X光的好处远远大于其在很小程度上增加的罹患癌症的风险。
But, I moved along the x-axis to one.
先沿着x轴走到。
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