Arsenionization
砷离子透入法
🗣️ 情景例句
They came and solved the problem.
他们来了并解决了问题。
You are useless!
你真没用！
But there was no time to think.All her other friends were now outside the door.
但来不及去想了。其余的朋友现在也全都到门外了。