Saturation activity
[化] 饱和放射性强度
🧩 词语组成解析
🗣️ 情景例句
I'm out of a job at the moment.
现在我失业了。
When is he expected to be back?
他什么时候回来？
One had winter we watched the river creep up the lower meadows.
有一年冬天，天气不好，我们眼看着河水浸没了地势较低的草场。