Radioindicator
[化] 放射性指示剂
🗣️ 情景例句
That sounds good. Let's soak up a little vitamin D.
听起来不错，让我们摄入一点维生素D吧。
I can't believe it.
我不相信。
Let me see. Er, walk along this road and turn right.
让我想想。呃，沿这条路走然后向右转。