Ehl
[医][=effective half-life(of radioactive substances)]（放射性物质的）有效半衰期
🗣️ 情景例句
Over-qualified workers are likely to quit the minuter they find a better job.
学历高的人一旦找到更好的工作可能就会辞掉原来的工作。
We'll sign two originals, each in Chinese and English language.
我们将要用中文和英语分别签署两份原件。
Yes, it's out.
是的，熄了。