Hendel
abbr. Helium Engineering Demonstration Loop 氦工艺示范回路
🗣️ 情景例句
Oh, I don't know.
噢，这个我就不知道啦。
Old wood is best to burn,old book to read.
老柴好烧，老书宜读。
Does the computer ever make a mistake.?
计算机出错吗？