Ephos
abbr. European procurement handbook on open systems 欧洲开放系统采购指南
🗣️ 情景例句
What do people usually do on that day?
在这一天，人们通常干什么？
Only by working hard can we succeed in doing anything.
只有通过努力工作我们才能成功。
After making a short test flight at 4,15 a.m.,
布莱里奥凌晨4点15分作了一次短距离试飞，