X-rays
/ˈeks reɪz/ 112X-rays are a form of electromagnetic radiation, similar to visible light.
noun [专属名词]伦琴线; X 射线
X-rays can penetrate many objects.X
射线能穿透很多物体。
- X-rays 出现在下面的课文中（提供视频、音频及笔记等可系统性学习）
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单词造句:
X-rays can penetrate many objects.X
射线能穿透很多物体。