Radioisotopic
[医]放射性同位素的
🗣️ 情景例句
I really had a great evening.
我真是过了一个绝妙的晚上。
Who has no haste in his business mountains to him seem valleys.
做事不急，履险如夷。
'Why are you doing that?' Sally asked.
“你为什么要那样做呢？”萨莉问。