Cobalt 60
n. 钴的放射性同位素, 钴60
🧩 词语组成解析
n. 钴, 钴类颜料\\n[化] 钴Co
sixty
🗣️ 情景例句
When the bough breaks,
树枝若折断
Grasp the shadow and let go the substance.
舍本逐末。
In the 1970s, computers were common enough, but only in big business, government departments, and large organizations.
在70年代，计算机已经相当普及了，但只用在大公司，政府部门和大的组织之中，