Eb
abbr. 电子束（Electron Beam）
🗣️ 情景例句
Have you ever been to Niagra Falls?
你去过尼亚拉加瀑布吗？
The day is short but the work is much.
工作多，光阴迫。
Boxing matches were very popular in England two hundred years ago.
两百年前，拳击比赛在英国非常盛行。