Waco
abbr. 世界空运组织（World Air Cargo Organization）
🗣️ 情景例句
Richard, isn't that too much to ask of your mother?
Richard，那是不是太麻烦你母亲啦？
Who is speaking?I don't recognize your voice.
阁下是那一位？我听不出你的声音。
The normal price of a ticket is $2,000!
而正常票价是2，000英镑！