Decay series
[化] 衰变系; 放射系
🧩 词语组成解析
🗣️ 情景例句
There is a lot of unsavory material available on the internet.
网络上有很多不健康的信息。
Pride must be pinched.
骄傲必须收敛。
They ask question like Li Lei, is it in your right hand?
“李磊，橡皮擦在你右手里吗？”