Spd
abbr. 电涌保护器；补充石油税；统计过程诊断（Statistical Process Diagnosis）
🗣️ 情景例句
Going swimming should be a good way of letting your hair down after a hard day's work.
游泳是在辛苦了一天后放松自己的好方法。
Lookers-on see more than players.
旁观者清。
Of course. Right now we can't produce goods quickly enough for all our customers.
当然可能啦。现在我们还不能很快地为我们所有的顾客生产商品。