Desy
abbr. Deutsches Elektronen Synchrotron (German=German Electronic Synchrotron) （德语）德国电子同步加速器
🗣️ 情景例句
Closed for repairs.
关门整修。
Don't mention it.
不必客气。
This is because the surface of the earth is not flat but round.
因为地球表面不是平的，而是圆的。