Definitions

[1] n. 镭

[2] [化] 镭Ra

[3] [医] 镭(88号元素)

[ 'reidiәm ]

1. It was Marie Curie who discovered radium.
   鐳是居里夫人所發現的。
2. Who was radium discovered by?
   鐳是誰發現的？
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