Alpha-activeity
[化] α放射性
🧩 词语组成解析
alpha
['ælfə]
n. 希腊字母的第一个字母;
🗣️ 情景例句
It's not good to eat before going to bed.
在上床前吃太多不好。
The consignment appears to have been roughly handled and left near a heater.
看来货物未受到细心的处理，并且被放置于加热器附近。
No!We're alone here. We're all by ourselves, said Jim. Isn't that great?
“没有！就我们在这儿。就我们这伙人，”吉姆说，“这不是很好吗？”