Cko
abbr. 首席知识官（Chief Knowledge Officer）
🗣️ 情景例句
What was that about?
说些什么？
$19.00 a day or $129.00 a week, unlimited mileage.
一天19美元，一周129美元，不计车程。
Which one is cheap? Which one is dear?
哪一支便宜？哪一支贵？