Bmx
abbr. 自行车越野赛（bicycle motocross）
🗣️ 情景例句
He's such a workaholic that he doesn't know how to spend his leisure time.
他是个工作狂，以至于不懂得如何打发他的空闲时间。
Which one is more economical?
哪一个是比较经济的？
The contract will be sent to you by air mail for your signature.
合同会航邮给你们签字。