Radioactive decay

[化] 放射性衰变\\n[医] 放射性衰变

🧩 词语组成解析

radioactive ['redɪo'æktɪv]

adj. 放射性的;

radio光线+act行动，做+ive有...性质的、有...作用的 →放射性的

decay [dɪ'ke]

vt.& vi. （使）腐烂，腐朽; vi. 衰败，衰退，衰落; n. 腐败、衰退的状态;

de向下+cay落下→向下掉→衰退;腐败

🗣️ 情景例句

He doesn't have any beliefs; he just takes one day at a time.

他没有什么信仰，每天只是得过且过

I asked him to buy it for me, but he wouldn't.

我请他帮我买，但是他不肯。

The largest was 713 pounds.

最重的一个达713磅，

更多情景英语 ›

🔤 更多 R 开头的单词

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