Specific radioactivity
[化] 比放射性
🧩 词语组成解析
radioactivity
[,redɪoæk'tɪvəti]
n. 放射（性）;辐射能;
radio光线+act行动，做+ivity表示情况、状态、“...性”、“...力” →放射性；[核] 放射能力；[核] 放射现象
🗣️ 情景例句
Their after-sales service was just so bad that I decided to never buy anything from that shop again.
他们的售后服务太差了，所以我决定从此不再能家商店买东西。
I did lesson yesterday.
我昨天做功课。
When it was eventually brought to shore, it was found to be over thirteen feet long.
当终于把它弄上岸后，人们发现它身长超过了13英尺。