Arconograph
电弧稳定性测定仪
🗣️ 情景例句
and they found it to be too easy--
他们发现字太简单了，
We shall never have friends if we expect to find them without fault.
指望朋友无缺点，永远休想交朋友。
He's not in trouble, I hope!
我希望他没有遇到麻烦！