Scpo
abbr. 一级军士长（Senior Chief Petty Officer, 美国海军军衔）
🗣️ 情景例句
All my bags are checked in. I guess I'm all set to go.
我的行李都检查完了，看来我可以走了。
Which one is more economical?
哪一个是比较经济的？
Of course.
当然。