Radioactive decay 的释义·读音·用法·词根来源详解

🧩 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

What are you gonna do now?

你打算做什么？

What do you think about it?

你对此怎么看？

So archaeologists have neither history nor legends to help them to find out where the first 'modern men' came from.

于是，考古学家们既缺乏历史记载，又无口头传说来帮助他们弄清最早的“现代人”是从哪里来的。

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