radioactive ray

• 放射线

radioactive ray的用法和样例：

例句

1. The infant has been exposed to radioactive rays.
   那个婴儿已经暴露于放射线中。
2. You may have another certificate showing the goods to be free from radioactive contamination.
   你们还要出具另一份证明书，以证明货物没有受放射线污染。