Decay series
[化] 衰变系; 放射系
🧩 词语组成解析
🗣️ 情景例句
I'm going to play with a group of friends.
我打算和朋友一起玩。
The effect speaks, the tongue needs not.
事实胜于雄辩。
There's nothing better for you than plenty of water and sleep.
你最好多喝水多休息。